Excellent freedom, openness and lightness.
What I feel sometimes - would like to have wider pedals to support body weight better. Especially, when wearing lighter shoes, all the body weight (I'm not over-weighted) falls to reduced surface of foot and it is developing to be somewhat stressful. So I have the best experience pedaling with hiking boots :-)
Mine halfbike is without gears. It didn't feel it to be important because most of roads in town are flat. Still, not everywhere and then I miss gears...
In general, thanks for the great invention!