Man, I must be lucky so far. I just rebuilt my suspension last winter and bought all Moog stuff. The joints where nice and tight. After reading thru this, I'll keep an eye on them.
For the most part, I think they are. I have had a piece or two pretty sloppy out of the box, I could easily move them around in my hand. Of course it's been a while since replacing anything on a vehicle.
I'm going to do a complete rebuild on mine, I already bought a complete kit from PST, and they seem pretty decent quality, and they aren't made in China, overseas yes, China no.