I'm a commando, we were nerfed harder than any other class in 1.2. I'm still playing and I'm still having fun and I still kick butt most of the time.
Nerfing isn't the end of the world. You can cry about it and whine and quit, but ultimately, it's not game breaking. You learn to adapt, but the game itself is still fun. This is second major update for the game in not a whole lot of time. My biggest complaint before was the total lack of communication with the player base. They have since corrected this issue. I see them moving in the right direction (server merges, better community teams, updates etc). A nerf to your class isn't the end of the world. Does it suck? If it's your class yes it does. Is it the end of the game? No it isn't.