Im an intermediate/enthusiast drummer, and not pro, so I have a shorter, structured practice time. This app helps me structure my practice, track my progress, and really think about the notes I need to play when Im focusing on my technique. As a metronome its great, of course, but its more of a transcription and journaling tool than it might appear - though its difficult to use initially, as you become accustomed to the app youll find it anticipates your needs. Ive loved using it, and the playlist function - as well as the information it returns on each practice session - has been a great boon to efficient but thoughtful practice.
edit: With the latest version, Ive come to grips with the playlist function more, and while I sometimes get lost between the app and the video documentation on the website that seems to be fixed. Anyway I still love using this as my metronome and I still maybe only use half of its features.
jason.tiess about PolyNome: THE Metronome, v2.2.8