This isn't the best Doctor Who book I've read (or listened to), but it was entertaining enough. I like anything to do with cryptid ape creatures, and I do enjoy the creativity of the Doctor Who universe, so a Doctor Who story featuring the yeti was something I couldn't pass up!
The story was a little, I don't know, bland(?), but I really enjoyed the characters of The Doctor and Jamie. The narrator was very good--I actually think he would have been perfect reading something like the Harry Potter series. He did evil voices quite well, and varied his pace and tone to help convey the atmosphere of the story.
Overall this was some good brain candy. It may not have been chocolate, but sometimes gummy bears will satisfy just as well.