Ive been burned so many times with replicas, even replicas that have been recommended, I just wont take the risk anymore, as Pault says, its just a lottery as to what you may get. The problem is there are just so many factors to take into account, mold quality, lay up procedure, time in the mold, post mold care, materials etc etc and basically you get zero quality control with any of the above as they just dont have time vs cost they are charging.
Rt performance allow 2 days to fit and paint one of their Chargespeed rear copies (not something they tell you before you buy incidentally), at £250 - £300 plus a day for most bodyshops you can see how quickly costs spiral. So how long would it take to bolt up an oem (original item) front/rear bumper like Andy bought, 30 mins, I appreciate spray time is involved but thats the easy bit. So you either have a replica costing very close to what an original costs but still doesnt fit quite as well.
Sorry for the essay, but so much to factor in thats often forgotten or ignored.