I was there to see that R2 match - it was really very cold out and when she came out both my friend and I said that was the cutest outfit we'd seen in a long long time. Looked even better in person - and I'm not normally one to care (unless it's super-hideous). Fila did a great job (and soooo much nicer than all the yellow-white everyone else seemed to be wearing)!
Wozniacki has magnificent shotmaking if you ask me, but it's not the power kind of one. She has to rely on all court tactics to make effective her sweet topspin mix, while still able to hit pretty decent winners when she feels them, especially with the backhand. Despite not making many winners, she's still an agressive baseliner, and she doesn't only win matches by waiting the opponent's mistake, though she can do that at times also.