I'm not a drummer so I can't judge it from a technical pov, but I enjoy it a lot. The description doesn't do it justice. Some extra details that I don't remember being mentioned:
- in the metronome mode, it has different time signatures, different patterns, and different sounds
- in the other two modes, it detects input and replays a sound in real time through the speakers (you can choose from 5 sounds, they're not great, but it's still nice)
- you can adjust the mesh tension
Maybe these are clear for experienced drummers, but for a noob like me, they were a nice surprise.