Tried out the Jet Set Radio XBLA trial.
My review is the following:
It is JSR in HD with a second analog stick. No "Yappie Feet" as it couldn't get re licensed for the soundtrack.
Buy it if: You like actual colors on your HD console and miss how awesome Sega used to be and are OK with it literally being the DC game on your PS3, Vita or 360
Avoid it if: You are content with the dominant gray and brown of the current generation or somehow expected this to be better than it was 12 years ago.