5 stars: There's a small charge for getting rid of the small banner ads and the 10 second wait time after playing some songs, but it's absolutely worth it. A ton of rhythm games on the play store are just gacha grabs or IAP nightmares. This is just stepmania for your phone. Infinite possibilities for song choice, good options, an awesome game I'd recommend to anyone who likes rhythm games.
4 stars: Game performs well. I wish the UI was closer to StepMania as they show the artwork per song preview. also, navigating was easier. and I wish you could perform settings changes while the song preview is being shown. like when you see the BPM of a song, you can quick change without leaving the song, the speed. and quick change other effects too. Other than that, this works great. even works landscape for a tablet. love it.
4 stars: Pretty good once you tweak some settings. The built-in OGG loading compensation was screwing with the note sync of my ZiV simfiles and it took way too long to figure that out, as my newer phone doesn't suffer from OGG loading lag like older ones did. It'd be a good idea to have a sync test when you first launch the app so that users can turn this setting on or off.
3 stars: The game itself is well done and I use it to keep up my reading ability. The reason for 3 stars is I paid to remove the rather annoying delay when you load a song, but if you don't have an active data connect it adds back the delay. I get DRM but that's just stupid, especial...