I've been running them for 2 years, over about 20,000 miles. I keep the bushings greased, which is very easy as they have quick connect grease fittings on each bushing housing. Not sure what the other guys problems are. I know a lot of folks on this board love overpaying for $hit at MM, but whatever.
MM was a pioneer with the parts they developed and continue to develop for us Mustang guys. They put the money into the R&D. Lots of new products fail that we never see, that's part of trying new things. They lose tons of money on that. Then they get a few things to work, and after a bit fly-by-night eBay knock offs like Granatelli come along and make half-assed replicas of MM parts.
People like supporting top companies like MM out of gratitude and a desire to continue seeing them turn out new, better products. Cheap asses like you want to save a buck, but you don't consider the consequences. If we don't continue to support these top companies, they'll either move to other platforms that will, or they will close up shop completely.
MM gives out technical help for free. MM stands behind their products and when you call in with a problem they back you up and help you out. MM is at the road courses helping people like me optimize their setups and go faster, asking for nothing in return, even when some of my parts are NOT MM.
You have a problem with Granatelli ****, you get someone on the phone who doesn't know what they're talking about, has never actually worked on or raced a Mustang, only wants your money, and just wants you to go away and not help you solve your issue and replace your parts.
Show me ONE product in Granatelli's line up that was the first of its kind.