My problems were few:
- 1/72 VF-11B non-FP - self destructing left hip. (was fine out of the box. had it displayed standing up and after a month, it fell over under its own weight due to osteoporosis)
- VF-1 TV fast packs - can't attach the gunpod to the arm armor due to the pegs being too big to fit into the gunpod hole. I guess I could widen the hole on the gunpod, but I never bothered to.
- VF-0A cannon fodder - plastic where the shoulder goes over the ball joint was cracked and split open. Wasn't like this when I first got it and I had left it in fighter mode so I never knew, but after all the horror stories about the shoulder piece, I removed the shoulder armor and sure enough, it was broken like everyone else's. Epoxied it together and then put the arm armor back on. Left it in fighter mode again so I don't know if my fix is lasting or not.
- SV-51 Nora - the part of the leg that has the joint that allows the twisting of the leg had a weak peg or something and split on its own accord. I just epoxied the two halves together instead and it's better than new now.
- YF-19 - uncommon problem, the surface above upper left intake has a stress mark/crack. Not sure how it happened, but I saw it there one day. Also crooked gunpod.
Edit: blah, I just remembered the title was about good experiences but with people listing their problems it threw me off.
I also have a couple 1/72 YF-21 FP, another 2 VF-11B FP, 11 1/48 VF-1s, 2 VF-0S, an SV-51 Ivanov, Q-Rau Milia, Koenig Monster, 2 1/60 YF-21, another YF-19 (no problems with this one... yet) and a Tomahawk. No problems with these other than looseness in some joints for the VF-0 and Koenig Monster. I think I've had a great deal of luck with my purchases and most things that were bad were easily fixable.