Well I broke down and bought it today and I'm having a blast. It doesn't just feel like "another remix" of X2, the quality has been upped in the character art, backgrounds, and music. In fact I just got back from playing this game for about 3 hours at a friend's house at a very loud volume on his surround sound. The new combat stuff they added is pretty cool and adds a new degree to the fighting, especially the new aerial combat stuff (you can fight in the air a little longer). New Order Sol is very weird to use considering I'm pretty good with normal Sol but some of his combos are kinda cool. My only complaint so far is no story mode, but for $30 new I'm not complaining. I'm looking forward to playing some more tomorrow on my day off and getting used to the new combat stuff. Also, I am more rusty than I thought at the game, I set the Arcade mode to the hardest difficulty and got my ass handed to me on the 4th fight so I had to set it a notch down but I started getting back into my groove when I was playing my friend.
I really hope this game does well sales wise and a new story driven Guilty Gear X3 is made, Daisuke has expressed interest in having fully animated cutscenes instead of the storyboard style cutscenes in X2 and that would be awesome if they could pull it off since they have some amazing artists. I am also surprised that no anime series or movies has happened yet.