So I finally got around to downloading the demo yesterday. Much much better than the little I played of 3.
I felt like the enemies were all fair, aside from the alchemists and Duelists(alchemists with rapier), they dodge your attacks and block at random, they don't seem to have any specific vulnerabilities aside from UT's, once you get used to them they are easier to deal with, wind path still works on em, but they seem poorly designed to me.
Ryu seems pretty sluggish in comparison to last games, I noticed he is left more vulnerable after his dodge, and some of his moves have recovery frames now where you can't do anything, but I figured out ways around it, just takes practice. Wind path is as good as ever, but I noticed you have to recover from throwing aerial shuriken and you can only do an OL charge after em now, so I mostly just use them to cancel recovery frames. The Katana moveset is alright, but I gotta say I love the dual blades and claws, gonna stick with them for sure.
Ayane is great, she feels more like the older games in terms of movement, she doesn't have the recovery problems ryu has, she also has more range than ryu when it comes to SOB chaining, her XXYY is great for delimbing and it helps against the duelists as it locks them in place.
Kasumi felt really good as well,I love her windmill shuriken, she also has an amazing grab move that you can use to get through enemies guards and get a free aerial combo afterwards, it's probably the only consistent way I've found to deal with the alchemists aside from UT spam.
Anyway it was a blast, and I wish my stinking xbox disk drive wasn't broken, hopefully I can get another one soon.