Most of the HAH owners are very happy with their cars! Just go back and read some of the older threads and you'll see. It just so happens that most of the HAH owners here have moved onto other things outside of this forum. Still, some still lurk and chime in when they can.
I've sort of done the same thing. I was pretty active last year, but I've got a lot going on lately and don't find much time for GH.
To answer your question, after over two years and 40K miles, I STILL LOVE MY HAH! Just like a few others have commented in another thread, good FE while at the same time plenty of HP for some "spirited" driving when needed. I've never had a major problem with my HAH. The only real repair was resurfacing my rotors and replacing my driver door power lock. I've been averaging 30 mpg due to the fact that 90% of my driving is in the city around metro Phoenix. However, I can almost always get 35-45 mpg on the long distance highway runs.