As tube finned kits go, I'd rate the TT near the bottom of the pile in everything except cost. Has a very slapped together feel to it. I did like the inclusion of Kevlar in the recovery system, but the sticker decals were a) stickers, and b) the wrong color. Performance was great going up, but you're tempting fate if you fly on anything but thick, soft grass. Mine hit hard on the infield on its only flight to date. The body tube bent above the tube fins, three of which detached at impact.