Well......I just bought a second hand 103" span GSP Edge 540. While the quality is not a 10 out of 10, I would give it an 8. Overall it's prettiy nice. I do have a Yellow Aircraft Extra 300 1.20 size that I'm not impressed with. Why? The wood quality is poor on a good portion of it. It's covered with Monocote not Ultracote/Oracover. Sheeting is very thin. I've never flown it because I got the leftovers from a minor wreck. Having peiced most of it back together, I'm not really sure I want to finish it.