After playing some 300 matches this past month, this is my opinion:
1.game speed sucks... the players and the ball movement is simply too fast, it's an up and down rush
2.advantage given to the strikers, driblings, and the power to get passed the defener is so screwed up that many times you don't stand a chance to get close to the ball, although positioned well, you get pushed to the side, ran over...
3.refs criteria changes a lot from match to match, which is real... but... in two different matches you have criteria so different that in many cases gets you so many cards, and players sent off that it makes no sense. Yes, the rough fouls now do get punished, but criteria changes make it impossible to know which style to apply.
4.keepers... they are off to ruin almost every second game with their 'saves'... every strike towards the keeper end up rebounded... and it looks silly, because they are positioned quite well: they simply bend their knees and act as little child when you throw them the ball for the first time.
5.shooting... what's wrong you people at konami?! You have to miss 5 clear chances before scoring... you get to miss so many chances that it makes you brake not only the joysticks...
... I'm saying all this based on the number of shots per game, which has increased by a 100%, and scores... now we have scores close to fifa, like, minimum goals per game is 5!!! And many times we play 2 vs 2 multiplayer matches... we, all 30 and over hard core players agree, the game is not good!!!
Please, someone... will this improve in the PES6, or, will we have to change stats, like in PES2, to get the proper feeling and realism?!?!?!!??!