As I remember the instructions were pretty straight forward, but the wheel pants were a pain, along with the wing bolts. I wanted to use blind nuts for the wing bolts, but the holes wouldn't line up, and couldn't properly set the nuts in place. So I ended up adding some ply, re-drilling everything and putting in bigger bolts. I just didn't feel comfortable with a bit of CA'd threads holding the wing on.
The covering is also a bit of an issue, mainly wrinkles and bubbles that are tough to get rid of due to the type of covering, but there was a pretty good post about it a while back.
Other than that, she fly's very smooth, and stable. I only sold mine because I wanted something more aerobatic.