Where do I begin, well, I'll go over the positives first. The game-play seems (to me) a little smoother than 2, which I own. The addition of the dark slide option was pretty cool. There is a hyped up online mode that I did not play, but from my research into other issues I found out it is an amazonian size cockroach of a bug (i.e, it doesn't work). The biggest draw for me was the park editor. Theoretically you can make all manner of parks and even download them if you don't want to take the time. That, however, is the core of my problem.
In order to get items for your park you have to complete single player missions, which are standard but fun. The problem, at least with the 2 (yes 2) copies of the game I got was that you can only play an undetermined amount of missions (or whatever) before the game..sorta..freezes. You can hear background noises while the loading icon is spinning but the game never loads. Furthermore when I reset the game, it forces my ps3 to reset too. Not cool skate 3, not cool. I thought maybe I just had bad luck with both copies (to clarify the first one never loaded anything), but It's kind of hit and miss with other copies as well (according to the all knowing forums).
All in all, It's a big disappointment, if only for the fact I wanted to buy the game for the park editor, and I cant trust to buy a game this buggy. Not to mention it is, in the end, skate 2.5, not really skate 3. The game is fun if you get a good copy but....ya know.
My 2 teenage boys played with game for hours daily. They enjoyed every bloody scrape the game allowed. It may be 'bloody' but at least they were not outside doing this in real life. Gave them the ability to have skills they aren't physically able to do in real life.