You get what you pay for. I am currently redoing an Extra 300 profile (never seen air) that I bought from someone on eBay.

Every seam had lifted. Not all the ribs and sheeting were glued on, and the cutouts for the access panels were done on the wrong side (or it was covered upside down, take your pick).

The ailerons, horizontal and vertical stabs, rudder and elevator are all "built from sticks", and in many cases where the sticks are glued in on angles the ends of the stick were left "square" instead of angled to meet the piece it was connecting to. No wonder TT tells you not to fly this plane fast, it will fall apart! I added some gussets where I thought these surfaces needed reinforcement, but this is not an option if you leave the covering on. By the way, don't use acetone to clean the covering, it dissolves the covering and makes it brittle (You know how I know). Sure isn't Monokote!

All that being said, I paid $23 for the one I have, so I don't have any "real" complaints with what I bought, but I am pretty sure that this plane, as it was delivered, would only last (1) flying season. Maybe for this type of plane, and at $80 street price, that is not a bad deal.