I read The Martian. I blew through it within a week, which is amazing because I don't often make time for reading since I've moved out with my boyfriend. I thought it was a ton of fun. Never thought reading someone's thought process on surviving on Mars would be that entertaining. Personally, I can't wait for the movie but I'm trying to curb my expectations of it as much as possible. Currently, I'm re-reading Leviathan Wakes for the...fourth time. I'm pretty much going to re-read The Expanse series every time a new book comes out. I'll probably keep re-reading them after that. I like that it feels like a mix of everything on top of the scifi backdrop. It's by no means a literary masterpiece, but I love the series. Also looking forward to the show and also trying to curb my expectations for it :)
I don't know if this will interest you, but Andy Weir gave a talk at Google about the software he created to keep the details of the book accurate to what is realistically feasible. It gave a nice view of the behind the scenes process for me and I was rather disappointed with the Google guys not applauding his software, having seen what goes into some of that stuff from Kerbal Space Program, to do that for a book is just astounding!