Each "instrument" can stand alone as an art piece! Amazingly cool designs and some very interesting sounds. I could also see some really interesting performances with the integration of their instruments in a live performance.
I would use these as more of an enhancement to my current methodology, rather than any centerpiece. Not really a go-to instrument for me personally, but the potential is there for some serious generation of electronic rhythmic elements.
Among the most unique and aesthetic musical instrument creations I've ever seen. Extra points for originality. :-)