know people with AP coilovers and the more expensive FK coilovers, the AP ones seem exactly the same in terms of ride as mine (fk ak streets), just they payed over twice what i did. the more expensive FK ones i saw a slight improvement over, but not one that i could warent spending the amount of money they cost on.
IMO FK AKs are great, cheep and do the job,heard lots of bad stories about them but i think its just people being unlucky or not instaling/looking after them correctly.
also know someone who had wietechs on his golf, had them on for two months, took them off sold them, bought fk aks and a few other cheeper parts with the money he got from his weitechs.