I will only review their oldschool material here, because I haven't listened to much of their new music out of self-protection (it's usually disappointing). Their first album is called Reachin' (A New Refutation of Time and Space) and it contains Rebirth of Slick (Cool Like Dat), one of my favorite Digable Planets songs. I think the album has a nice sound, but I like their second album (Blowout Comb) a lot more. From Black Ego to Jettin', from Blowing Down to 9th Wonder (Blackitolism), these are songs you won't get tired of any time soon.
I realize this is a very short artist recommendation, but that's because I don't know a lot of facts about this group and I don't know their lyrics by heart. Still, I advise you all to check out the CD Blowout Comb. It's so relaxing!