I was interested for the rumored efficiency and reduction in carbon footprint. I have enough yard for the wells, but would definitely have to take down/rebuild some fence to let the equipment through. If the 15-20 SEER heat pumps are now able to heat through a VA winter without needing the auxiliary heat, I think they’ll be a significant enough improvement from our 25 year old AC and gas boiler system that I’ll see the reduced install cost as a win.