So I originally got it because I’d had the volca drum machine (I am a drummer primarily) and wanted to try and learn how to use a proper synth, thought I could have some fun making small demos with the two of them.
I’d say unlike the beats (which I love and have even used live 3 times) it’s a far more restricted machine. Part of that is it took me forever to get a grip on how to make proper sounds, but also it has a tendency to go out of tune for no reason, trying to get it to play in time (even with the sync from the beats) is infuriatingly hard, and the keyboard is a bit of a mess as well - you have to be weirdly precise with your presses or notes drift out of tune (so playing chords becomes a nightmare).
That said, it’s also very fun to fiddle with, and discovering things (like making a glorious retro Zelda theme sound) is super fun. I’m out of the loop even when i try and use synth apps/programs on a computer so this has actually helped me learn a lot, and I am starting to demo some things. I’d say if you have experience with using analogue synths then it’s not going to do much for you, but as a beginner machine it’s cheap and real enough to be quite worthwhile.