I was told that Moog has extremely good parts, but are also twice as expensive as PST (at Jobber price, 3 x's more for retail). Moog also had a warehouse fire about a year ago that all but wiped out there inventory. They turned to imports to fill the gap while they rebuilt and did have some issues (which they took care of).
Point is all of these manufacturers have their problems from time to time, you just have to see who has the smallest number of problems and go with them. I have heard plenty of good things about PST and will be installing the OEM kit in my GA. Just hope I don't have a ball joint go south on me!!