If they had any bad habits it would be all over the internet and I hear nothing but praise for these airplanes.
The only thing I've heard that is 'negative' about them is that they tend to not have the best glide ratio for their weight class and a bit higher stall speed than you'd expect with the size of it. However, there's two answers to that: 1. a parachute (either on the plane or the pilot) 2. a well executed forced landing (in other words, now how to actually fly it and don't ham fist it)

That said, I'd not turn one down if I had the chance to fly or own one.