Nice bike. Ride the heck out of it. Keep it clean and lubed and you'll get plenty of trouble free years out of it.

And if you hell bent to start making changes (everyone does) spend an afternoon looking through old posts. You can basically upgrade almost anything on that bike but for now I wouldn't or at least start with the some of the most inexpensive ones just to get a jump on that "I gotta change something feeling". Maybe new brake pads, you can flip the stem (that one's free), If you don't like the grips that's a pretty cheap change too. If you're starting to think about the cranks and stuff like that right away then you bought the wrong bike.