Can't really complain about Japanese language seeing as the game is aimed for the Japanese.
I agree with sometimes the ball seems a bit light, I just try to think of it though that my Fevernova ball is much lighter and the world cup ones were
Speed stat is a small problem, some players sprint so fast it's scary, although taking the ball around a player whilst sprinting is seeming 10 times harder than PES2
Creating chances/CPU creating chances could be improved. I don't see that many "decent" chances a game, long range shooting seems my best bet until I can craftly carve my way through the CPU defence (this is on level 3 too!)
Not really any other problems. People say the players stand weird for fks/gks but they look alright too me.
Best football game I've ever played by far, if these are the biggest gripes about the game then the stuff that's good really is amazing.