TPO3, Right now?
It's has great matchups (except for Gothitelle) and it's a decent deck but it can falter and collapse way too easily. It's Plasma matchup is also only good, not great. It also has the issue of being a pure anti-meta deck, meaning it will often just get demolished by anything that isn't metagame (not too big of an issue, as Klinklang had the exact same problem, but it's something to note).
Anyway, I'm not sure I'd feel comfortable playing it a tournament right now due to the ugly Gothitelle matchup and some consistency issues, but it's certainly a contender. It's just one of those decks that looks godly on paper but has a lot more in-game issues than you might expect. You should ask RogueChomp if you want to know more about it, as the primary information I have on it is heavy testing right before States and a little bit of testing right before Nationals. It did manage to get 2nd in Seniors though, so the deck is by no means bad.