Oh, right. Well, I really really wanted to love it. There were a lot of wonderful elements to it. But ultimately the story was mildly unsatisfying. Not bad by any means but it left with a "coulda been so much more" feeling. So, mild disappointment.
One thing bugged me was...
MINI-SPOILER!
...in the beginning, they clearly show that he is having hallucinations. I kept expecting this to be a factor in the plot and most of the movie kept expecting Sam #2 to be a hallucination or something. But that whole aspect ended up having nothing to do with anything which felt very off to me.