Simple but very effective. Window for inputs is more precise than I expected, but also not so precise that I ever dropped combo as a result of it (that only happened when messing up between rhythm switches), so nice balance there.
One thing was that a lack of a beat before the ball passing started meant that getting starting could be a bit iffy; I also found myself syncopated off the down beat a number of times - minor but sometimes resulted in my timing getting messed up by the 12/1234 switches being off-measure relative to the music.