Advantages: People aren't used to playing against Terran.
Disadvantages: Anyone who got good at that muta micro UMS map (read: everyone), is going to be a challenge.
So far I'm 3-0 on iCCup. My opponents seem legit retarded. It's like they get every kind of tech building, dual lair, and evo chambers just so I'll have no idea what exactly they're trying to go... but then I break their sunks and they realise they should have probably just chosen one thing.
I have a nasty habit of pressing "i" thinking I'm going to be upgrading mines, and then realising my vultures have speed, and my expo is going to be impossible to defend without the help of some hero scvs, and a very helpful tank... I saw him upgrading range, but I guess it was a fake with air upgrades, cause his dragoons couldn't hit my tank with my scvs blocking them off... That was amusing.
So, from Terran, to Protoss, to Terran, to Zerg, to Random, to Terran, maybe I'll stop fucking around and actually get good at this game