I like the original a ton. I'm no jpop cigarillo, but I can see how some people are writing this follow-up off: In the original, it may have been jpop garbage, but at least you couldn't understand what they were saying. I think th egame will turn out fine, since all the songs are just covers anyway.
It's a fun rhythm game. Just don't go into it thinking it's he most incredible game ever, but I really shouldn't have to warn you not to base your expectations off of GAF hype.