When I first tried the Halfbike I thought that I wouldn't be able to ride it, it just seemed so hard. Even after I started riding in a straight line, taking turns looked like an impossible undertaking. Nevertheless, persistence is key and after every next try I was getting better and better untill I was able to turn, and even initiate slalom turns.
The coolest part of learning was the very rewarding progression curve, which leaves you wanting more. Of course, after you learn properly and get used to trusting the Halfbike, that's when the real fun starts, and you could start experimenting with different terrain and slopes. All and all, it's a different, awesome and quite a rewarding experience.