I've recently come across someone claiming that the PVP set gear (http://www.wowhead.com/itemset=-593) was providing such massive gains for him (http://elitistjerks.com/f76/t130930-...6/#post2216154 has the logs) that he'd even take the epic PVP set over the heroic T14 PVE items because the bonus was that powerful.
I can see it being fairly good, but I can also see the proper tier gear perhaps being equivalent or better. I can also see Blizzard having a problem if people start thinking the PVP gear is the best because of the set bonuses, thus we should probably nip it in the bud before it bites us later on.
So the main question is: How many others have tried it? If you have, how has it worked for you?