I wired this per the instructions, and it didn't work. I called the Honeywell technical service toll free number, and they informed me this product is an advanced product that can only be installed by certified contractors. On top of that because it was a model that had to be installed by a contractor, the Honeywell technical service support was limited and they couldn't help me. No where in the product description does it attempt to inform the buyer of this.

I was recommended the 5000 by a few buddies of mine who do HVAC out at a refinery. They all mentioned that every unit used the 5000 and that each one of their homes had the 5000 in theirs which they installed. So, I went on ahead and ordered one. So far everything has been really great with this thermostat. It does everything I need to and it isn't loud like some have mentioned. Easy install as well. Also I might mention that I was told that these thermostat's can go thru quite a bit and are resilient as all get out so it should last for a very long time.

This thermostat is working great. It is small and compact which looks nice on the wall and lights up when you need to use it at night. It does have a "click" sound seconds before and after the air comes on and off. I don't mind the click sound and neither does my boyfriend but if you are sensitive to sound you may want to pass on this one. The only reason I gave it 4 stars is because of the "click" sound and also it was a pain in the butt to set up. You need a very very SMALL FLATHEAD SCREWDRIVER. We of course did not have one in our home and needed to improvise and ended up having to run to the store and buy one. But once that was done, installation was easy and simple.

Perfect for my 80 year old mother. When she had her furnace replaced they put on a programmable thermostat. Her original was the old round mercury stat. Well, Too many phone calls " How do you turn the air on" "how do you make it colder" " I can't figure this thing out"
Problem solved.
10 minutes to remove the programmable, and install this. Super simple replacement.
With the few controls, it's PERFECT !!

If anyone needs your basic but digital thermostat this is the one!

I was surprised that when the temp. was reached, and the outside unit turned off, the fan stayed on for a few minutes to get the most out of the cooling coils while they were still cold!! Awesome !

For the price, it certainly works and is simple to use. It feels a little flimsy when installing it (pushing and prying on it getting it on/off mounting bracket).

Recently a family member installed a different model that I think I like better than this one that is similarly priced, which is the White-Rodgers Emerson Blue Easy Set Thermostat - 1F86EZ. I like that it is still fairly easy/basic, but has some programmable options.

Ideally, I would have liked to have had the older round style, but the newer production versions of those get absolutely horrible reviews so I was afraid to try them. I don't like these push buttons because it seems like you have to push the up/down over and over trying to get it to react, then when it does it goes too far. The round model was such a simple twist.