Coils failed in 6 months
933865
Item was as described but writing this up now because it only lasted 6 months.  Once it failed I noticed that the coils are touching in several places and this is where it failed.  Two of the coils fused together from the heat and fractured in 2 places.  Next time I will go with a more reputable brand name item
3336632
Put this in when I did the water pump, timing belt, oil pump, etc. Worked fine for 6 months. Since this is my 2nd car it dosen't get a lot of miles on it. Installed late January, failed at the end of May. I've done some more research now (after the fact) and turns out i'm not the only culprit.

I originally thought I had a headgasket going because i JUST replaced the t-stat with this unit. After not loosing any coolant, I pulled this out and boiled it, and it wouldn't open. Now i'm curious if there is a warranty. Guess i'll be buying one from the store, but not a stant. Good luck fellow Subaru-ians.
2838002
I had to update this to a one star review.  This unit slowly started failing, but could not pinpoint it as such with my voltmeter on the bench.  The issue started as an intermittent slight misfire at idle, between 800-1000 rpm about a month after install, without the engine light coming on.  My car has OBD1, so not super easy to read real time data through the computer, saw nothing strange. Issues ended up getting slowly worse at idle and some while driving and the engine light came on.  This was 4 days ago, so I went through my computer and was getting a random misfire code, so inspected the distributor cap, rotor, and plug wires that were installed new at the same time as this coil in late January (about 2 months ago).  Went so far as to spend $40 at the dealership for the factory plugs, no change.  Next morning the car ran fine, assumed it was a loose connection from the coil to the distributor cap.

Today as I'm driving the car starts and drives decently, as the issue was intermittent and haven't returned in the last 4 days,  then instantly it began misfiring badly on the highway at 65mph and loses power and I begin to decelerate.  I limped it to the shoulder, misfiring so badly it just shuts down on its own, pop the hood, and smell burning electrical and see the coil pack smoking. Saved the old coil in the trunk in a box, popped it back in and it starts!  Ended up grabbing a used OEM coil off a junkyard car that didn't have cracks, purrs like a kitten again!

BUYER BEWARE, this is a cheap unit that may or may not work!
1168110
BURNED OUT AFTER 6 MONTHS AND WEAK COFFEE AND TOO MUCH CLEANING
852333
These may say AC Delco, but as others have said, they definitely are not original equipment quality.  My original coils lasted until 222,000 miles, then I installed these.  One was bad out of the box, and I just had another fail slightly over one  year later, and about 20,000 miles.  THAT is not good enough.  Not hard to replace, but when it strands you without a vehicle, time off from work, and you have to order and wait for another one, then THAT is a pain in the a$$.  Replacing a coil should be something you do once in the life of your vehicle.  I will not buy from this seller again, as these are obviously inferior grades of parts, or possibly even knock offs, labeled as AC Delco parts.
2003363
Junk, 6 months later and its deteriorating.
1376704
Like others I have relay buzzing issues.  I have three places in my house I use/used these and I have replaced these timers twice in all locations.  For one of these cycles Leviton was nice enough to take them back and send new ones but the last two that failed I got no help.

These were lightly used and all still failed between 6 months to a year.  Junk.

I will be choosing a different brand in the future for timers of this kind.
308983
I used this for about 6 months for occasional incremental backups from my desktop.  Today it failed to turn on or power on the drives for no apparent reason.  The drives did get awfully hot during normal use in the past, sometimes above 45C.  I replaced it with a SIIG SATA to USB 2.0 dock with fan and there is a noticeable temperature difference.
I don't know if I would recommend this to anyone considering how hot the drives become under normal usage conditions and the unexpected failure after just 6 months of occasional use.
1496155
Power supply worked well at installation installed indoors for a 25' total length led ribbon.  I chose this one so as to have plenty of current in reserve since it was used on a commercial installation and wanted a long time happy customer. Failed  exactly 6 months later with ribbon flashing on and off. I had to replace it and eat the cost for a new power supply and my labor. No  warranty to speak of just a 30 day return policy with Amazon. Not happy and will not buy again without 1 year warranty minimum.
2756157
I had one of these die on me (with rattling sounds inside) after less than six months of service.
3803428
Similar to other reviews after 6 months of use, my unit is now failing after about 10 months.
I was meticulous about maintaining the unit in terms of cleaning and respecting the intended use. Now the electric motor is failing and I can smell the brush arcing within the motor. Also, the shape of the intake nozzle tapers inward, precluding vacuuming in corners. Lastly the rubber flap in the dust cylinder is prone to occlusion. I am very disappointed.
4424269
As promised: I'm back to bomb rate this particular product.  Had a second one failed within the following month after the first one did out of the box.  I've replaced all of them since with OEM product. This last one cost me a lot of unnecessary diagnostic time and money (who suspects an item out of the box/new to be defective?).  This company's QC/QA is equal to their product: "junk".  Their customer service equally disappointing.  I could not resolve issue with Amazon as "warranty is through manufacturer" and I was left holding this bag: six useless Spectra "Premium" (what a joke) ignition coils.  I wouldn't recommend these to anyone.  I worked on my auto too long, removed airbox (labor intensive job to get to the back 3 cylinders) THREE times because of these garbage items.  My previous review below:
I had bought six (6) of these only to have one fail well within 6 months of installation.  I have rated this item 3-Stars THUS FAR as I'm giving manufacturer the benefit of the doubt (oddball/small Q/A issue: one of six) and the price was excellent BUT, if I have any other ignition coil fail within the next 60K miles, I will bomb this product/rating. Product is made in China.  Working through Amazon Customer Care (excellent outfit!) for replacement.
88980
They worked fine for a year.
I had two fail two weeks ago. had a cylinder 2/3 fail, I put in my old oem coil and misfire went away. I put these back In and now they misfired again.
Two days ago cylinder 5 misfired. Swapped in old oem plug and no problems since. Waiting on the last three of these to go bad now :-(
3329379
Every one failed in less than 6 months.  Please folks review after you use the products for at least 6 months, that goes for all products here.
1319337
Failed after 6 months.  Past the return window.
2490130
Was installed with new HVAC systems. Two have failed within 6 years.  Didn't try to contact Honeywell due to poor service reputation.  Are there other brands out there that have similar features?
1404989
Here's the logic - My 2004 F-250 with the 5.4L V8 was missing/ & had a lack of power on hills. The coil packs on this engine are notorious for failing. This set of Accels cost me $185. I'll bet that only one of these coil packs was bad. But, you really can't figure out which one is bad unless you take it to the dealer or spend a lot of time swapping out a known good one for the bad one by process of elimination. The dealers around here charge about $100/hr. The Motorcraft coil pack is about $70. Although, I could have bought one of the Accel coils at Napa auto for about $48. So as I figure it, I spent about $35 more than I would have at the dealer and I have 8 new coil packs installed (I also changed the spark plugs at the same time). The only thing I won't know is whether they last as long as the Motorcraft coils from the factory (they lasted 110k miles).