Will change when I'm sure it doesn't automatically switch on me.
936800
I use this to switch between my Nintendo Switch and my computer monitor, and sometimes it switches back to the Switch without any reason. I have the Switch on input 1 and the computer on input 3. Oddly enough, moving the Switch to input 2 fixed it. I'll keep an eye on it for the next few days, and if it works alright I'll keep it and change my rating to 5 stars. Otherwise I'll return it.

A setting to make the switch manual only, and not automatic, would be great.
3548226
I needed this to automatically switch between devices better and it doesn't. It's not much use to me and will be stored with other failing equipment I have purchased over the years.
2805155
I like it, but had to change how I hold it because the right click is sensitive. I find myself pushing it on accident a lot.
151878
On my key ring, it turns on by itself sometimes. So the batteries wear out frequently.
4499862
I often forget to turn the fan on when I get in the shower so I thought that this switch would be great.  I adjusted this switch for a week or so before every shower, but got unpredictable results.  Usually the fan would not turn on until I was almost done with my shower, sometimes it did not turn on at all, then other times it would turn on for no apparent reason in the middle of the night.
883195
This one actually auto-switches and doesn't turn itself off. Monitors my video sources and switches each time a new device is turned on. I can return to a prior source easily with the remote. Well worth the price.
1745579
at least for me. my tv won't switch automatically to the other HDMI input - even if said device (AppleTV in this instance) is on prior to turning on the television. I have to manually hit the button on the switcher each time.

works for my needs - just not as conveniently as promised.
622848
for this to automatically switch the units you are not using have to be unplugged, not just turned off. I had to go to a real switching device.
2266994
It is very temperamental.  Sometimes it comes on and others not.
2962363
... you have to manually switch between the two devices. I was expecting it to do that automatically but it appears description is clear. Makes things a bit cumbersome ....
4698140
My previous Keurig had an automatic on/off switch; this one just has automatic off, so I miss that extra feature.
3449925
Its inconsistent when it turns on. I have turn on and off the switch to get it started at times
4816640
Good, but it won't stay disconnected when I want to change to another Bluetooth device in a different room. I have to unplug it. Also, it snags other phones that come in range.
4881912
So far so good.  Sometimes when I turn it off it doesn't realize its off and I have to slide the switch back and forth a second time.  I like the fact that this one verbally shares its battery level with you when you turn it on.
4335902
It's not changing my s4 as fast
As i had expected it to do base from on what I have read  from the description on amazon.
799648
It works ok, except it doesn't always catch the keep on the first try.... annoying except
4441804
So far, so good, but since it's a powered device, it is constantly on, which means it throws off the auto switcher.