This maintains its temperature for about 4 months. I ...
599081
This maintains its temperature for about 4 months. I have noticed that accidentally knocking against it will certainly decrease its heat output permanently by 5-8 degrees.
352891
The quality looks nice and it does keep things cooler but not for long as I thought it would.
3837034
I purchased this same mug but from a local dept. store, so this is no reflection on Amazon or it's associate sellers.  It worked fine for the 3-4 months it was used, but after it sat idle over the summer and fall I plugged it in to start using it again and it would no longer heat.  Pretty disappointing since it retails pretty high most places I shopped.  I also thought that Totes guarantees their products, at least I believe they stand behind their umbrellas, but cannot find anything on the web to track Totes down on any kind of warranty so I probably will end up throwing this away.
1207412
Works great for about 4 months now.  No complaints, gets rid of the smell of smoke effectively.  Did need a new filter after 4 months.
3500560
So far I've had mine for 4 years and still running strong. I run it in my bedroom throughout the cold New England winters. Which sometimes feels like 6 months out of the year. I like that it is not digital because digital units need to be restarted if the power happens to go out in the middle of the night. This heater will resume once power goes back on. I had this happen a couple times. Overall, keeps rooms warm and toasty.
544792
I've been using this thermometer for about 3-4 months now on a regular basis, no complaints so far. The temperature shows up in a reasonable amount of time within a few minutes. I don't think you can quite picture the size until you see it in person, this thermometer is very long which is useful in a large compost pile. It's all about that temp at the center of the pile. I've also banged this thermometer around a bit, accidentally of course, and it's held up surprising well. Sturdily built and prompt delivery of the package.
2778377
very quick boiling and blue lights at night are very cool not to mention reheating water via temperature selector to make water barely hot is excellent

update: after four years of continuous every day use the base from a handle side has started leaking
1273776
I was very excited about this but after four months it is not working properly. With this I guess you get what you pay for.
735030
Mine has been running for over 4 years without fail.  We have heavy winter and a hot summer and we have add no issues thus far.
3165545
This has lasted me for 4 years as a music major....I use this everyday and there are no signs of use.
3469547
I have read the reviews that report a short life span on this product. I have had mine almost 16 months now, and it has worked flawlessly. Keep in mind that it must be kept in a room with a moderate ambient temperature to work properly.

If you want to use it for both reds and whites, you'll have to compromise on the temperature, since this one is not dual zone. We keep both at (the default) 55 degrees, and then plan on chilling whites in the refrigerator for a while before drinking. The temperature display seems accurate.

Here's an "off label" use for this product: it is great for keeping chocolate candy at just the right temperature.

Edit 11/2/13: Still fine after 27 months.

Edit 6/26/15: Still fine after 46 months.

Edit 9/10/16: Still fine after 5 years.

Edit 8/24/17: It is now broken. It is keeping the wine about 5 degrees cooler than our 74 degree room temperature, that's all. It was good while it lasted. I note from other reviews that many people experience a much shorter life span. Based on my experience, only you can decide if a six year lifespan justifies the price for you. As for me, I doubt that I'll buy another of this type. I have changed my previous 5 star review to 3 stars based on this.
2326581
It works ok, but it often keeps a temperature a few degrees above the point you set. This is after letting it do the "autotuning" cycle (which incidentally seems like it takes longer than necessary)
That being said, it does do a passable job.
2079523
Beware, see attached pictures for condition after 3-4 months of daily normal use.
1511863
Seems to be fine after about 4 months of use and 6 months of sitting.  I don't know it's actual run time as I'm usually on A/C
3697215
After less than 4 months it's not holding it's charge for a full day.
1302338
Have used this for the past 3 to 4 years, and it still works great.
1884376
It only lasted 4 months.  I expected it to last at least one year.