I just picked this up for 360 today. 54 dollars @ Costco.
I really like it so far, its graphics are stunning.
The gameplay is stunning.
Yoda is unfair and very out-of-place. Vader will be DLC for Xbox and Yoda will be same for PS3 come december. Tower mode is really fun but hard o.o;
Online players are full of immature complainers who call everything "cheap" Heck, arguably a lot of people play very unfair online (Someone uses same attack on me 10+ times in a position on the map where I was unable to do anything about it, eventually landing me a ringout and I lost, yay.)
Story mode is literally 10 minutes long, a bit dissapointing but kinda neat. I have too many friends playing this for me to just wait for price to go down, so I ended up buying it. But if you can, I'd wait a little longer for it to get cheaper.
Oh, and character customization is REALLY extensive and awesome. However, costumes and weapons actually effect statistics which kinda is a bummer for I prefer to look pretty. However, looking pretty can usually mean having really poor statistics and lookikng really fugly means having good statistics. Shame, but meh! Hope it helps o.o;
Oh, and when you hear the term "Boob Calibur 4"; it fits x.x; Such a focus on making characters have enormous ...erm, assets.