Not going to get into attemting to changing peoples perception on Geo. here...
But, I have used wood for 16 years, then went to total geo for another 15 years...most recent 3 years has been coal boiler + geo.
Coal boiler heat delivery is through geo heat pump duct system. I love my air-conditioning in the summer...coal don't cool.
Not to say I was unhappy with geo for winter heat, just is my nature to try different energy sources and "tinker" with them to get more for less.
I would say geo is like a lot of other subjects and it's not too difficult to find the "horror stories" of some bad installs.
In all fairness, when considering geo...listen to both the happy and unhappy experiences.
I am not a contractor or an engineer, but just a tradesman that enjoys knowing a little/lot more.
Would love to have that Artesian well on my property, if it makes around 8 gal/min.