I have the G-Trick and have been flying it most all summer. It's held up well, so far! you may have read my previous posts about the initial quality of the plane. If you were to get one, I'd get a bottle of CA and some epoxy and go over it pretty well. (like inside the fuse, between the balsa sides and fuse doublers, add tri-stock under landing gear mount, wing hold down, etc, etc).

As far as comparing it to the UCD3D - while I don't have one of those - I think the G-Trick is geared more towards pattern. UCD3D has a much fatter wing and is meant for more of the slow, 3D stuff. The G-Trick excels best at the pattern type maneuvers. while it does have pretty big control surfaces, its weight doesn't lend itself well to the same 3D type of flying the UCD3D is known for.

Hope this helps. If you have any questions, ask away! Again, mine is still going strong (purchased Dec. 31, 2001) and will have to do no more maintenance for next year (other than usual inspection). Flying mine on YS 91.

Regards,
Scott