Creatine

For the last eight weeks or so, I have lifting weights a lot and taking massive amounts of protein, via a dietary supplement. (74 grams of protein per shake). I've deffinetly seen some improvement. Lately, I've been thinking about adding creatine as well. Has anyone ever tried creatine? I've done a little bit of research about it, and many people say it's harmful, while others say it's safe, and that nothing bad has been known to come out of it. What do you guys think?