Is this a good analog synth for beginners?

Yes, absolutely, it's great to learn on. You should keep in mind though, the mini's build quality is questionable, it has an 1/8" output, which is fucking retarded, there's no MIDI out or thru, so you can't use it as a controller for other synths you might buy in the future unless you route it through a DAW, and there's a bit of noise that you might not hear at first, but once you do it will drive you fucking crazy. I love mine, the thing is a beast, really. but for those reasons I named I rarely ever use mine these days.

Alternatively I'd recommend getting a Behringer Neutron with a Keystep for something semimodular that's around the same price.