I got my key and have been playing for a while. I'm decent with protoss and zerg now, haven't touched humans.
I'm still in the war3 state of mind (more micro, less units) so, for my end game I always forget to make like 15 gateways (I usually have like...3) and thus, I have less units and get pwned.
It'll take some time for me to get used to it.