So why do I like this? Part of it is purely intellectual: I just like the idea of combining musical principles developed by Steve Reich and applying them to jazz. Making jazz music out of simple melodic cells and using the space to move it in small increments over a swinging groove is something that I find inherently interesting. Of course, the results themselves need not necessarily be interesting, but I think that Bartsch's usually are. I like how the drummer sounds like a more swinging version of Philip Selway. I like way Bartsch gets inside the piano. The music is through-composed, so it's not like any of it happening by accident.
I don't at all find it "new-agey," except in the most superficial of senses. It's minimalist, and that's the point. I don't think the point was to be mood music.
I'm also a fan of the like-minded Sonar (as is Nik Bartsch himself), and saw them on their lone trip to the US several years ago.