Now that I agree with. It's unfortuante that some people wont give PES the time it needs to really shine just because of a lack of polish. I have however experienced my first GK gaffe - a deflected ground pass came into the penalty area and instead of calmly kneeling and scooping it up, Valdes chose to dive and whiff completely, allowing for Olic to run in for a tap in. That's the first time in about 30 matches the keeper has so obviously cost me a goal, but still, it was a tie game and in the last ten minutes!
The only issue I sometimes have in regards to gameplay is sometimes it can feel a little unresponsive, but that may change with time and greater understanding of the gameplay mechanics. For example, I seem at the moment to have trouble with using R1 for quick stopping (without turning to face goal). Again, that could just be me.