I have the Edge 540 46/61 size and it is very light. The construction is all CNC laser cut and perfect. The only thing about the Aeroworks kit that is cheap is the covering material. It is low temp and comes with plenty of wrinkles for you to iron out. Thats typical of ARFs. But Aeroworks covering shrinks so much that it often distorts the symmetry of the color scheme and in some places the contrasting colors do not overlap enough. Just a little too much heat and wood can easily be exposed. In some places the seams are located over open bays. Too much heat and you have a hole in your airplane !! Not good. Having said that, once taught the covering seems to stay fairly taught, even through the changing seasons. Since my experience is with the cheapest airplane that they make and since I am comparing that product to other airplanes available in the $189 range, I must say that the Aeroworks product is a great value. I am not familiar with their higher end models and how they compare in thier price range.