While I have never used one, I am such a huge fan of this one particular band Buerak that I had to find out how their beats were made and it was Korg Volca. Buerak is just a guitarist and a bassist, their 'drummer' is the Volca Beats and I think it's also the secret sauce. Many late-soviet bands were into New Wave and made use of synths/drum machines, Buerak - whether they claim this as an influence or not - is clearly influenced by these bands (most famous would be Kino), but the Volca sound is just so much more dynamic - and it is accessible. It's pretty cool that these guys, who ostensibly do not have a lot of money (from kind of a B-rate city in Russia), were able to make such dope music.