So, after more and more of playing PES 2013 Demo, I must admit I'm amazed. It's absolutely fantastic. Where should I even start...
Animations have reached new level, it's still "Pesish", but definitely better then any PES predecessor and any FIFA till date. Improvements are very visible, there are lots of new animations, it looks more natural and I love that.
When I saw Deft Touch Dribbling I was glad they implemented something like that, but I thought it would be the same useless s**t as FIFA's Precision Dribbling. On my surprise it's not, it's useful, gives you a lot of opportunities, it looks good and skilled AI players use it often. I remember once when Ronaldinho rolled few of my players... wicked! Bravo Konami, guys from EA should take a note.
Defending is also improved, it's even easier then last year, but much better if you ask me. The way you can intentially foul a player, and determine the distance between oponnent player is great. Another big plus. AI positioning is great also, it depends on which difficulty you play.
I play with Demo Unlocker that charliehamster posted link for (Thanks, mate), on professional difficulty mostly, but will try new Superstar difficulty also.
There are things that can be improved, but in general I can't complain on anything, I enjoy this Demo and new PES gameplay. I think I'll try to play with more tactical approach now, change tactics and formations to see how it'll resemble on the pitch. I assume KONAMI improved that segment also, cause tactics are very important, especially when you play ML with weaker team.