Not reliable especially in a home automation setup
922384
I have 10+ of these integrated within a home automation system (Wink). Setup (using iOS) was no problem. Have been using them for 10 months. Where the product really fails is with it's horrible customer support, poor 3rd party integration, and absolute lack of communication.
iHome uses a cloud service to control the outlets from your phone app. This cloud service also provides status information (like whether the outlet is on or off) to other apps like Wink. Very often I have issues with outlets dropping offline even though they have internet connectivity. Also outlet status is often incorrect. There is no status page to check if their cloud service is up and running.
If you are planning to use these for long-distance remote control, for example power cycling of equipment,  these outlets are not reliable. You really need to have physical access to the outlet for frequent resets. Their customer service is laughable, no help whatsoever.
390841
I had two of these fail in the last week.  Both are about a year old. The first one has a couple of ports that stopped working, and the second completely died overnight.  They're plugged into UPS's, so power surges didn't cause the problem.  I'm really dissapointed!
933525
After about 10 uses there always seems to be a problem with it becoming in synced. Or the it stops working. Then you have to unplug and replug the two.
4222011
Have 2 of these in a location; 1 is fairly reliable, but the other (similar settings) keeps just dropping out. It's getting worse with time. Restarts, etc no help. Tried a few different firmware versions - no help. After some research and reading reviews I see that some units are just bad.
If your WiFi needs to be reliable, don't waste your time and money with these; Just buy a Ubiquiti AP.
[Edit: I had assumed the 2nd one was reliable because nobody was complaining, but users noe tell me they have no WiFi a lot of the time so neither unit is reliable *sigh*]
3261174
I have 47 UPB devices in my home, most are Simply Automated. I have 11 of these US2-40 controllers. One just failed as the #1 Button (upper left corner) clicks but does not function (send a signal). Confirmed with UpStart software (Logging).  Reprogrammed and reversed with button #2.  Light device works with #2 button. Disappointed that this is out of warranty and now as failed. At these prices (I paid $59 and now they are $73) I think I should not have to deal with this failures so soon. I expected more.
Now worried about the reliability of the heart of my automated home. What worries me mostly is that this controller (because of its location) is the least used in the system. This button has not seen 50 pushes in 3 years. Totally disappointed...
3180616
I conducted hours of research before purchasing this security light. It worked well for the first week or so. It began to intermittently miss detections of people coming right up to the door. I adjusted the motion sensitivity numerous times and it continued to be unreliable. Sometimes it works fine and other times it won't detect motion even if I'm waving my hands right in front of the camera. This is with the sensitivity set at 95%. I'm glad I didn't sign up for the cloud storage because this light is unreliable as a security device. We wanted to buy two more for the back of the house, but we will have to go with something else. It took three days for Kuna support to get back to me by email. I tried to call the number, but it forces you to leave a voicemail. They suggested I change the channel of my router, but my router is already set to one of the channels they recommended. Don't buy this if you want a true security camera.
1540805
I have purchase 4 of these units.  3 or the 4 have failed after being in service for relatively short times.  On the plus side, they are easy to set up and when they work they work.  2 of the 3 failures resulted in the device being turned "on" when it was supposed to be off.  In all fairness, I am in an area where lightning is a factor, however I also use a competing product in the same building and have zero failures.  I can not recommend this product due to unreliable operation.  It does, however appear to meet published specifications.
1212453
I have been a fan of Securifi products for a while and purchased multiple units for both home and work.  I like the simplicity and that it has home automation ability built in.  Unfortunately though, they have some quality issues. For example, one of my units has an issue with the 5GHz radio.  It just stops communicating with all the devices connected to it.  All devices look like they are still connected, but then they just stop reponding.  Really irritating while watching a movie or, well, doing anything.  Switching to the 2.4 then back to 5 works, rebooting work, but it is all a hassle.  It has been an ongoing issue that has just gotten worse and worse.  Support tried to address it with beta firmware to begin with, but they could never completely resolve and now it does it all the time.  They say now it is out of warranty so they only recommend setting up a regular reboot schedule.  Had they replaced it when I first brought up the issue and stopped trying to tie me over until it went out of warranty, then I wouldn't be in this situation.  Was a fan, but now looking to replace with another product.
1929696
I have purchased this product a week ago, and I am experiencing intermittent connection loss to the networks I have created on this device. I am using it as an access point, so it is connected via ethernet to my modem. Every few minutes, all my devices get disconnected from it. Not reliable at all! I have a smart home, and my devices only work half the time because of the problem with this device. When it is working, its good, but for a $100+ is a total failure.
133085
This switch works, but just barely. It is also extremely tricky to setup. Eventually through some permutation of holding buttons 1-3 or 2-4 to pair, unpairing, pairing, resetting, and healing, it finally works with the Vera, but barely. It takes a long time for scenes to activate, and the LED's are not reliable when indicating the scene. Often I need to double tap a button to de-activate a scene instead of just pushing once.  In fact, originally I had a button programmed to open the garage door, however the delay when hitting the button was too great, resulting in multiple button pushes, then some erratic garage door action. Eventually went back to the plain old button that came with the garage door.  As for the IR functionality, the Logitech Harmony One only has the VRCS4-1LX in its database, and as far I can tell, can set the scene correctly only about 10% of the time. I even switched out the faceplate for the one with the RED IR window. Not sure why the IR window is red, it is quite ugly as well. I will likely go back to the all white faceplate as the IR functional doesn't works so well anyways.

On the positive side, this was the only Z-Wave controller with a load switch inside I could find. It is better than converting a 1-Gang switch box to a 2-Gang to hold a switch and a controller. Each button can be assigned two scenes: Scene Activate, and Scene Deactivate.  As a result, and even these shortcomings, I had to settle and ended up with several of these in my house.

In retrospect, with the extra time it takes to finesse this item to work, might as well have installed the new electrical box.
85890
UI sucks, Lackluster settings options.  Device powers self off (Energy Saver) after set amount of time without any option to change. Won't work fully with standard Cable Universal Remotes.
2673660
It seemed to work fine provided I didn't want to leave something on all the time unless manually turned off. And that's the problem, because that's exactly what I was trying to do: have an AC window unit running except when I was in the room it was in. It would randomly turn off, seemingly without any rhyme or reason.
1598190
I have a dozen or so of Insteon products.  They're good when they work.  But they FAIL often.  I had one quite severe failure -- smoking in the wall.
But typically, you will have the dreaded blinking... the beeping... the sizzling (along with flashing display).

Complaints regarding reliability have gone unanswered. They just continue to fail. I would suggest that while they are trying to figure out what's wrong with them, change them so that the wires can be push-connectors rather than hard-wired.  Would save time having to replace these.

The problem is, once you have a houseful of these -- you're pretty much stuck unless you rip them all out

I concur that Smarthome does *NOT* stand behind their product. You need to jump through hoops to get a replacement, and if they do, their shipping takes forever.
3923469
I also have the problem of random disconnects.  We had a techie come in and try to set it up for us, he got it working, but the thing still randomly boots us off.  It does the job, I guess, of giving us a connection, but it's got almost no reliability.  I hear it's got a lifetime warranty; good, we can return it.
2603486
Works, then fails when you need it.  The unit stopped sensing AC power and the unit would continue to beep.  I contacted CyberPower and they sent another unit.  I attached my PC to the new UPS.  The breaker tripped.  The UPS kept the PC up and running, no problem.  When the power was restored it again did not sense AC power and continued to run on the battery.  I have many other UPS's that work without any problems.
1877125
Out of five Honeywell ECONOSwitch RPLS540A installed over several years, two have failed within a short time.  Think about the cost of having an electrician replace the failed units.  I have re-ordered from Amazon.  The next time, perhaps ordering from Home Depot and keeping the receipt would be a better thing to do.  It's been since December that I ordered the replacement.  Electrician was here for some other repairs, so the ECONOSwitch was installed this week.  He verified that it was defective.  The unit showed a backlight but would not turn on the lights.  Otherwise, this unit has programming aspects that are really unique.
1746864
We bought this to replace a light sensor that had given us about 6 years of good service in a protected, outdoor location (mounted to the soffit on the underside of our front eave).  This new sensor, however, is flaky and unreliable, at least as concerns using the manual mode where you can turn the light on if you, say, want to let the dog out.  Sometimes it works, usually it doesn't, and sometimes it turns on and then turns itself off when it senses the motion of the dog walking beneath it.  I've adjusted the sensitivity and the time options for the sensor and it is still very unreliable.

We'll probably have to replace this with something else--save yourself the hassle and don't buy this one.