My impressions are;
Players more lifelike in appearance than Fifa.
Lighting in the stadium is a bit better than fifa
Replays and Half time highlights are much better than Fifa, really miss how PES does this.
Like the shots, but they are assisted.
But Gameplay is the key word for me.
I really can't see how anybody that has played Fifa on Manual settings can go back to playing PES the way it is. Fifa on Manual is so free, it takes ALOT of time to get used to, but it is worth it.
PES just feels so restrictive. It feels so assisted and I don't feel fully in control with my players.
If I had never played Fifa on Manual, then I would probably have a high regard for the game. But I just feel like I am Handcuffed, I can't do what I want.
There are alot of problems with Fifa, But I feel I can play a better game of football with Fifa and have more control.
PES has a lot in its favour and I wish that Fifa would take some of the elements from PES. But overall, gameplay wise it is like going back in time a few years and we shouldn't be going back. Maybe PES needs a Manual setting or a better implemented one, then I might like the next installment
I will give it a few more plays and see if I am wrong

.......but I doubt it.
(Small print: these are just my opinions. So don't go all mental)