I found the puzzles extremely lame, I found the controls cumbersome and annoying and never acclimated to them. Up until the last sequence I was still having trouble running both of them at the same time. That could just be me. I'd make a terrible drummer.
The ending. I couldn't care less. Really. I have 2 brothers (middle child) and this didn't elicit anything from me. This is strange because I cry like a toddler at movies. I was expecting to feel something.
I don't think it looks amazing. It looks alright, and I like the Scandinavian folklore styling, but it didn't look amazing to me.
Things I liked: The achievements were nicely done. They rewarded exploration and you didn't get any for just beating the game. It's short, and I really appreciate that (and not just because I didn't like it).
I feel weird that I don't like it. I feel like I missed something, or that I didn't play the same game as everyone else.