There are three releases by this group listed in the Penguin Guide and all are highly rated with the one titled "Free Fall" receiving the highest possible "crown" rating.
I'd actually never listened to them, before. I like the sound as well, but given the sparse instrumentation and lack of significant variation of tempos, can't help but wonder whether it would get a bit monotonous over the course of an entire album. I guess it would fit a certain mood. Well worth checking out, though. Creed Taylor, eh? Who would've thunk?