i use them, no probs at all, in fact i actually changed a few back to ford as it was to hard a ride !!!
never had fit probs.
a friend had them make some custom bushes for his lotus carlton ( the only company to offer there help !! ) and they only needed a small mod to fit , but then they never had the car just an old bush......
at the end of the day the bush is only as good as the materials its made from, poly is poly who ever makes it. if you want to pay £80 for a £10 bush that's up to you !!!!!