I thought it was okay. Definitely not brain exploding. I thought/was hoping for some big twist that never came. Left a little disappointed.
Saw it this weekend. Nailed it visually and thought the acting was great, but fell into the same trope I think a lot of potentially great science fiction films succumb to which is finishing an otherwise complete story with a gloss of totally unnecessary sentimentality. I thought the same thing about Interstellar. So infuriatingly heavy handed with no purpose. I mean, what was the line at the end..."You wanna make a baby?" Are you kidding me?