i'm curious as to what bad things you've heard b/c i've had my OME leafs/coils for 4 years now (3") with no problems and i have used the XJ off-road quite a bit. in fact i chose OME b/c of all the good reviews even tho they run a bit more $$ than most others. my buddy has also run them for 3 years. you're the first person i have ever heard mention anything negative about OME. i'm not saying you are wrong, i'm just surprised, and, like i say, my experience has been very good.
i would ask if you have heard bad things from folks who have actually owned them, or was it "i heard about this guy...." stories. just curious. btw i do not work for OME or sell them, just adding my personal experience to help in your decision.
edit - just read your new post. didn't know they had changed manufacturing location. hmmm, since mine are much older maybe i just got lucky. that's too bad if they have lost the quality they had. cheers.