If you haven't gotten into Guilty Gear yet, this generation is the perfect time to start. There's a fantastic tutorial that rivals Skull Girls' -- plus Xrd's art style is head and shoulders above the rest of the pack. You might want to wait for Guilty Gear Xrd Rev 2 though, the upcoming iteration that's set to release on PS3 and PS4 at the end of the month.
Or, even better, just play the demo for free today on PS4 if you're a PlayStation Plus member. You'll get to play Answer and Baiken, the new and returning characters respectively, in versus and practice modes, as well as the rest of the cast.
This is a perfect way to get acquainted with the new balance changes if you play Revelator -- fans will likely provide damage values and other statistics in due time if Arc doesn't provide them at some point.
Guilty Gear Xrd Rev 2 [Aksys Games]