18 Musicians is AMAZING but there's very little else of merit I've heard.
Obviously, you can't go wrong with Ligeti, but this is particularly great. In fact, I'd go so far as to say that this album entirely highlights what I don't like about Reich - he neither makes the African ideas his own (as Ligeti does) nor does he 'do' Africa authentically.
I have a few Mbira records that are at least twice as amazing as anything Reich has done. Interestingly, I find Penguin Café Orchestra much more agreeable than Reich, because there's nothing that's trying to be
clever about them.