Honest opinion.
They have done quite a lot of changes in the core gameplay so the players were not like superman, as they were in 2008's version. You do have to pass more and look for space which i think is better in this years version. They have also changed the shooting in this version which i do not think improves from last year. I think it is messed up, a high percentage of the shots go straight to the keeper even when aiming in the corners. When you get in 1 v 1 situations with the keeper most the shots go wide just past the post. Im sure people will just be saying i suck, but i have been playing pes 2009 for weeks trying to perfect myself.
Online now...........wow after last year they should have just worked on the online or something because i think its pointless online on pes in recent years. The amount of bugs online is untrue for example keepers watch balls when they are right next to them and easy to get. People will be thinking yeah it makes it more realistic keepers making mistakes but this is beyond that. Its like keeps are not switched on at all. Also online players and just get past with ease very hard to get a tackle in online, its like a totaly different game when your online. Another let down was the recent transfers were not done for release date but i hear are coming in Novermber with and update on squads and tranfers.
Konami have made and effort though "become a legend" mode is great i think and the edition of champions league mode is a welcome addition. They could have done an "EA" and just released it separately to make more money.
Summary
Gameplay - 7/10 except the shooting 2/10
Online - 2/10
Additions (become a legend/ champions league)- 9/10