I view quantum cryptography as mostly hype.
Quantum cryptography doesn't solve the problem of authentication which is the main challenge when distributing keys (i.e., ensuring the right person is getting them, rather than merely ensuring they weren't intercepted).
The other reason I think it is hype is that it is already obsolete. There is a large number of proposed
classical algorithms for implementing traditional cryptographic schemes (key agreement, digital signatures, public key encryption, etc.) and are believed immune from quantum attacks.
Jason