The gameplay is perfect, many good songs, but also bad songs, but it's personal preference. Like all reviewers have said, the "unlock box time" which is so long, make this game forgettable because people can't play. I suggest you make a Practice Mode which is free to play. Or reduce the unlock box time, or you'll risk losing players in the long run. I also don't like when we miss a note the game ends. The Practice Mode is the best solution.