I was in need of a new thermostat. My old eyes could no longer see the poorly back lit one I had and the temperature output on the display didn't really seem to correlate with the actual temperature. Technician recommended the Honeywell wireless Redlink unit with the HD display. They seem to be up-to-date on the latest technologies, made efficiency recommendations for my 25 year old system so I could research with no high pressure sales, technician was prompt and courteous. Picked up the unit and had it installed the next day, price was reasonable and I can even access my system now with my Iphone and Ipad! I'll be back! Great job!