yeah I have been using UPP for a while and now just got some EX. You can't go wrong with both, great results with both and they are both extremely easy to use. The slight differences that I have seen so far are that the UPP has a little more gloss and the EX a little more depth. My conclussion so far with only a few cars with EX is that having both UPP is more suited to lighter colored cars and EX slightly better with darker cars. Another thing both of these products are reasonably priced especially considering they both require thin applications.