A great overall sound quality. Many patches, very well designed. Sound design possibilities in the innovative scripted GUI, are virtually unlimited (works in the free Kontakt 5 player). The "random" and the special "anarchy" functions add pure fun to the efx panel, giving you even more sound design chances, as they deeply transform the original patches (you can choose which efx to route into "anarchy", of course). Although it is a very efx busy library, it is still quite CPU friendly (I'm on 32 bit system, 2,8 Ghz 2 cores, 4 Gb RAM).
If you love adventurous and futuristic sound design, but you need "to play musically" (not a strange need, isn't it?) the patches created, then you'll love Crystal Bowls. The overall mood of the library is not that "epic" to me (but there is so much stuff on that side on the market today), I see it more on the ambient, minimal, techno, acoustic side (the "original" patches features beautiful acoustic bowls sounds), but it can fit to many other genres indeed.
I think its value is mainly on the sound design options it offers, very well represented and explained by the many beautiful factory patches, that point at the future of sound design and do not try to merely replicate (one more time?) existing instruments and sounds. The price is fair and all worth the great quality you get.