This game has lots of potential. I love the concept and the controls. I also enjoy the songs and the arenas. I enjoyed the challenge of trying to memorize where to place my hand on the fret and keeping up with the notes. That being said, I do think it could use a few tweaks. This game is pretty new, so I'm sure there will be updates coming. The following part of my review will make more sense if you watch my video review.
I wish there was an easier way to change arenas, rather than having to quit the game and relaunch it. Once you're done with an area and hit the exit button, it completely exits the game. I found the rockstar mode controls a bit tricky as the game's instructions in the tutorial don't exactly specify what you're meant to do in rockstar mode as it pertains to the symbols. This is something that would be great to add to the tutorial. (Maybe a separate tutorial for rockstar mode) I also wish there were some kind of game menu where you could control audio levels, change arenas, or even stop a song mid-play to select another. I hope to see more songs rolled out for this game because I believe there needs to be more of a variety for replayability. I look forward to more songs and updates