So far my experience with Competitive has been positive. The first match put me into a lost match already so that particular one was awful, but the rest have been very fun. At least people fight for the objectives instead of kills.
The last one I had in particular ended in an awesome melee in Gibraltar that we lost in the end but we didn't care, we had a lot of fun, some crazy shit went down there. There were no bad words, no finger pointing, no "ez" no "learn2play retard" and shit like this you so usually see in quick play. That said, I only did 5 matches and still need to be ranked, but that was definetely the best group experience with pugs so far.