I saw this on a friend's feed and was curious, so I checked it out. You can see from my books list that this isn't the sort of reading I usually do, but I thought it was very good. I especially liked the sci-fi premise and the developing relationship between the men.
(Not for the kiddies or the squeamish -- the details of the MC's imprisonment are pretty harsh, though I didn't find any of it overdone or egregious.)