I bought this game with high expectations, due to the fact I loved 09. The reality however is a mixed bag. For starters, the improved fight mechanics rock! Sways & counters, a better clinch, more striking animations, and a usable cage round out the positives. Not to mention more fighters (that unfortunately feel the same after a while). The graphics are updated too and look great.
The negatives don't outweigh the positives, but there's a few big ones. First off...submissions:( When it's easier to knock someone out with Royce Gracie than it is to submit them, there's a problem. And it's not like I tried to submit right away, I waited till the cpu was gassed, still nothing. It would make sense if I used Chuck Liddell or Lyoto Machida, But Royce Gracie...come on!!
The career mode is cool , but way too complicated. I started one , and gave up after a short time, cause it was too much to keep track of, you might be different. If they streamline it for next year it has a lot of potential. And yes the knockouts, although cool, happen a lot, too much if you ask me. Overall I can't say I regret buying it, cause its the only one of it's kind right now (EA MMA soon), but it's definitely better with human opponents (online is laggy but fun).