OK, played for a few hours yesterday and thought I'd follow-up. I like this game a lot, but it's also very frustrating. I go back to what I thought when I played the beta... it needs a SP mode to learn the mechanics of the game. Jumping right into MP battles had me nearly rage-quitting withing 15 minutes.
The controls are pretty unique and give a sense of weight to your character both, in and out of the Titan. However, I found myself getting frustrating learning the timing between reload/fire or shield/fire... I'm not used to games where firing will interrupt the reload sequence and it takes a moment to transition between shield and raising/firing your gun.
Double jumping + wall + more double jumping is cool. In a titan, the titan-less pilots look like fleas jumping all over the place.... not terribly hard to shoot, but very squirrely nonetheless.
@ $16 it's a decent purchase. I couldn't see myself happy with this purchase @ over $30 though, so i'm glad I waited