I know several people who have it and they all love it! I've not heard anything negative. Actually, I'm in the process of getting it. The drilling was done last week and the guy that connects the loops and buries everything finished up yesterday. I've been heating in the winter pretty much solely with wood in a Buck fireplace insert. I decided, after the rough winter we had, that I'm getting too old to cut and stack wood and then haul it in the house. My downstairs heat is propane with electric upstairs pre-geo. I'll have geothermal up and down when they get done and am looking forward to only having fires when I want them - not because I need them! My units are still working but they will be 20 this year. I figured I needed to do geo before they died and while the 30% tax credit is still an option - it expires after 2016.