I have never flown it, I'm not sure many have since it is still in developement and going through the certification process. I have seen it up close and it is a beautiful airplane. If the performance matches the craftsmanship then it should be a great airplane. Last I heard there were some hangups/delays with certification and the funding was starting to runout and the owner was deciding whether to go into production or market as a homebuilt/experimental. I haven't heard anything new in the last few months.
No, the company assets were sold off a couple of years ago including the demo airplane. I don't know if it had been repaired after it's last bending. To my knowledge there are only two Mountian Goats. The demo that lived in Wasilla and another that was owned by a few partners in Pennsylvania. I traded emails with one of those guys a few years ago. He liked the airplane a lot.