re: Poker & UTG with 99
First: I think a small raise to begin with (instead of a limp) UTG would have been safer. You don't want to risk some folks feeling pot-commited before you reraise.
Second: The only time I'd make any raise at all w/99 UTG is after I've been at the table long enough to know the type of players I'm dealing with and enough time to establish a table image. If I don't know it's a loose table and try this, I could be dead meat. Or if I've been previously caught bluffing and now no one believes my raises, dead meat. Also, the risk here is that you never know when you have run up against opps with higher pocket pairs that are itching to be raised. Later position would be better to try this.
I think you got lucky here.