I got it this morning. I am liking it so far. It feels slower and weightier, some people might consider it a good thing. I am indifferent. A lot of the characters have had their move sets rehauled (e.g. Maxi is almost like a different character). Graphics are good, if not a bit excessive with the overused bloom lighting. The soundtrack is great, which is of no surprise.
Online play is as laggy as Dark Resurrection's.
I think it's solid from what I've played today. Please note that this is coming from someone who only enjoyed the first Soul Calibur (but still bought the rest).
I'll try to give more in-depth impressions tomorrow. Feel free to ask away for now.
P.S. Darth Vader blows. Get the 360 version.