I am maybe biased due to how much I love the show, but I really enjoyed it. Especially, All Along the Watchtower, but this is mostly due how it was incorporated into show and not necessarily because of the song itself..
Immensely enjoyable, both inside and outside the context of the show. "All Along the Watchtower" is a prime example of a perfect cover, taking the best parts of Hendrix's original and improving upon them with oriental/Middle Eastern instrumentation and a palpable sense of atmosphere. 10/10 work here by McCreary. He surely deserved some kind of Grammy/Emmy nod for this.