Vortex Sound Research

I currently own a Volca Drum and generally sequence it with my Keystep Pro, although I like some of the performance features of the Drum, but dislike the pattern limitations and I'm still trying to learn the synth engines...

I was either thinking of getting a Beatstep Pro to sequence the Drum or, forget it, and get a Drumbrute Impact...

Any thoughts? Or, cost equivalent, alternatives?

Thanks!