I was interested in this thermostat for the wifi connectivity and with the hopes that it could save me money on energy costs. It's too soon to decide that yet, but I'm not sure if it will.
First of all, the overall quality of the thermostat is great. It looks nice (THOUGH IT'S HUGE), and is easy to operate either from the device or over the internet. It has a back-lit LCD display that always glows a reassuring electric green. The device is nice but it draws the eye to it and doesn't fade into the background the way you would want a thermostat to.
Installation was easy, though I was missing a power line from my furnace (my last thermostat didn't require one but it was buried in the wall) so it took me a bit longer to install then it should have. Once installed I grabbed a laptop and logged into the thermostat and then onto the web to set it up. This process took about 30 min in total as it downloaded an update to the device that took about 10 min itself. I've never been a big fan of the programmable thermostat because it always seemed to take more time to set it up then it's worth. The setup on the web was straightforward and simple so anyone could figure it out, though if you're squeamish about technology you may want to have someone else walk you through this process. Overall this was the easiest time I've ever had programming a thermostat.
The website asked for more information than I would normally give out (wanted home address, name, phone, etc.) and there's no mention as to what data they're collecting and tracking, but I'm sure they're doing it. And the web app really only lets you set the schedule for the thermostat. It does tell you temperature inside and outside and can email you on events. It will notify you if the temperature drops below a user specified threshold for a certain amount of time, or it can notify you on any event you'd like (fan goes on/off, temp changed, etc.). Could be a nice feature if you're concerned about others constantly changing the temp. Aside from that there doesn't seem to be much added functionality from the wifi connection, though it is really nice to be able to set the temp from my phone whether I'm in the house or not.
Essentially this is a rather large programmable thermostat that you can access remotely. It's nice, but aside from the ability to program it remotely there's not really much added value over a less expensive and smaller programmable thermostat.
I'd recommend this for the household that wants to micro-manage their heating/cooling. If you're someone who wants to set up a thermostat and forget about it you should probably just get a less expensive model without the wifi. Hopefully Honewell will include some software in the future to allow you to monitor energy use a little better or even to integrate it with data from your Utility so you can get more out of it.
Easy to Use