It's been years since I read it, so my main memory is just a vague sense of unease about it, but I think my main issues was how the "bad guy" crewmember was treated, and also something about how the reptile alien's culture and the feeling I got that the author was trying to make a point about not being judgemental about other culture's traditions but it was something that you really should be judgemental about, I think? And also the general vibe of non-humans as expies for real-life minorities, which often did not work at all in the context of the world. Sorry, this is super vague but I literally don't remember much about the book besides being disappointed and finding it a bit skeevy :D