I've been flying my Fun One for years and years and still consider it one of my favorite planes to fly. I have an ancient ,tired, gooey old O.S. LA.40 that moves it just fine. It's not a rocket but very steady and dependable. Obviously it won't hover or do 3-D but does pretty much everything else. Knife edge is marginal but that's probably due to my set up and inadequacy. Never had a problem with any bad flight tendencies. It is set up as a tail dragger and will float in nicely. I'd probably build another (if I could find one) if this one bites the dust.