I suppose I will weigh in as well.
I understand people's bias AGAINST Crossfit (like quikky and Rich). While the gyms will tend to follow the same general outline of the Crossfit methodology, there are definitely less desirable gyms out there. I was in a gym that was run by two different sets of coaches and I had completely different experiences with both of them. I prefer the ones I have now.
The biggest issue I have seen, injury wise, with Crossfit tends to be men that are in generally good shape but have never really done Olympic lifts before, or have been inactive for a period of time before beginning training. The injuries usually come from ego driven "I can lift more than this person over here" mentality and at a gym where the coaches are not as observant, it can be a bad environment.
That said, I think Crossfit gyms, in general, have begun to take a more dedicated approach to bettering form of their Olympic lifts. I am looking to get Level 1 Trainer certified myself, but I am going to be attending some USA Weightlifting courses first. At my gym the past two months, we have had guest instruction from a Crossfitter that took three years off to study Oly lifts, for example.
Bottom line, as with everything, there is good and bad. I love that I can work out in a more bootcamp style atmosphere, but with weights (but I am military). I say bootcamp because of the general group intensity level. You find a good class and you become friends with the people you workout with. You sweat and (if you accidentally knock yourself on a boxjump) you might even bleed a little with them. You get to throw heavy shit around in a (if you go to a good gym) safe environment. I started a year ago and am easily in the best shape of my lift.
~All luck is earned in the end.~