All coilovers... no matter how 'good' they are supposed to be will end up giving some problems no doubt!
You are messing with the car adding stuff that wasn't intended when they designed the car.. of course something will go wrong.
I got a set of cheapy ones for my
Ibiza.. noisey as hell. The brother has some FK's in his c2, which are supposed to be half decent. His back two shocks are now literally in bits... cracked!!! So avoid any 'too good to be true' ebay specials but also don't be expecting 100% plain sailing with a decent brand.
Having said that, that's a nice price posted by DPM and if I can get this guy on ebay to refund my money for my rubbish ones I'd be tempted!!