I'll chime in on mine.
Flying it since August after I had been out of RC for nearly 20 years.
It was a very good plane to start back with.
It surprised me.
It can be very stable and tame.
I have a Saito 100 on mine and use a 15 X 6 APC.
I often fly at WOT, never out of a dive, without any flutter (knock on wood!)
The only wear and tear has been the left wheel pant has been developing cracks since the first flight.
I think it must be some kind of harmonic.
I have just about stopped it with epoxy and milled fiberglass to reinforce from the inside.
I like to compare my UCD 60 to a good ol' dog...it's not a thoroughred but sure nice to have around.
JLK