I have a WM Super Sports and the quality is pretty good. The kit came with a pilot head that I tossed aside and used my own instead. The instructions are a bit unusual in that it uses symbols and a lot ofdrawings. If you have a few kits behind you however they make sense and are easy to follow. The wheels were too small for my clubs grass field so I went up to 3" wheels. Other than that everything else in the kit was used as is. Even the fuel tank is a good size for a 46 size engine. Plane flys fast and easy to control. Landings are no problem either.