Customer Rating: 
Summary: excellent control, easy install
Comment: This was a replacement thermostat for me, and I am delighted with it. It was easy to install and is super easy to prgram. The back lighting is a real plus feature as well. Really all I can say is - IT IS GREAT
Customer Rating: Summary: Follow instructions start to finish
Comment: I purchased this during the recent cold spell, and was a little nervous with installation.
I read the installation manual start to finish before removing old thermostat.
The package shows fifteen minute time, mine took about 20 minutes.
When following all the instructions, the setup was complete and the furnace ran correctly when power was turned on.
I let it run until it reached the set temp, then spent about ten minutes with the programing.
Customer Rating: Summary: Honeywell 7500
Comment: This unit has performed admirably in AC mode, and I am sure it will continue to do so in winter. Installation was easy and instructions were clearly written. Because of its tighter temp control range, my AC has run more efficiently.
It is a well designed product worthy of consideration for any thermostat replacement or upgrade.
Customer Rating: 
Summary: Wiring can be tricky
Comment: This review is from the perspective of a novice. I replaced an 11-year-old thermostat with this one yesterday morning.
Installation was not a breeze as the claim on the product package would like you to believe (i.e., "designed to install in 15 minutes or less.") We have a 5-ton split central unit with the condenser outside of the house, and the coil and a gas furnace in the attic. Matching the wires to the new thermostat was not that straightforward. Our old system has 5 wires but the Intallation Guide only shows an example with 4 wires. After failing a few configurations, I finally gave up and called for technical support. The puzzle was then resolved.
Programming was mostly simple and easy but not always intuitive. You do need to read the Manual to figure a number of things out. An alternative may be the 8500 Touchscreen model, which seems to have more intuitive programming based on reviews from Amazon users.
Overall, I would recommend this thermostat. Just make sure that you do your installation during office hours when technical support is available from Honeywell.
Customer Rating: Summary: Programming Isn't Easy
Comment: I got this thermostat to replace an older Honeywell model that was OK, not anything special. The feature that sold me this t-stat was Auto Changeover where the stat decides wheter to turn on heating or cooling. I live in the desert where wild temp swings are a fact of life and thought this stat would automate things a bit for me. No such luck. The documentation says that you may not see the auto changeover feature on the readout depending on how the stat was installed, no instructions on what to do about it, just a statement.
OK, it's installed and seems to work. Programming is way too complicated. The book is full of process numbers and other gobbledy-gook that makes no sense. You can program seven days separately if so desired. I opted for one program for Monday thru Friday and a different one for the weekend. I'm at work now and have no idea what the thing is dong on the five-day program.
If I had it to do over again, I'd probably get a different unit, or just keep the old one and manually change from heat to cool and back again.
