It's alive...?

I've really liked the book up until this point. However, I feel like I was let down a bit by the whole "It's Alive!" scene. To me, it seemed to come one really quick. I know there was that long period when he was gathering parts and putting them together, btu when he brought the monster to life, he was scared, not proud. But, honestly, what did he expect? He talked about how ugly the monster was, but what else did he think it would look like? It was a dead person's head! Of course it would be shriveled and gross! But, I guess my expectations may have been different since I've seen the movie, even though I knew that the book and movie were different. Eh, what are you going to do?