20" Nimbus II

I’m considering this as my second unicycle, my first being an average 24" bought at a local bike store. Is it a good one? Any likes/dislikes or reasons I should or shouldn’t get it?

From what i have heard, the nimbus 2 frames are really strong but i have never owned one. It seems to be a good unicycle for freestyle but it you want to get into trials and street get a 19" unicycle, it has a bigger tyre.