We're playing 2-5 hours a day typically, perhaps more on the weekends. We're level 46-47. Don't feel like we're rushing, but we certainly are playing a lot. Most of our guildies (who are more experienced in these games) are starting to hit 50, som did after two or three weeks I think.
Hitting 50 now is fairly normal if you're devoted to one character, it is fast to level in the game. More so than other mmos, if I've been informed correctly.
I think the leveling pace in this game is a way too fast. I already go out of my way not to log out in a cantina or my ship and even my wife who has never played an MMO before is worried that we will run out of stuff to do in the near future.