I've heard that its quite a draining place to visit. It's very emotional, and you definitely take something away with you. That being said, half of the people I've spoken to about it who have been there wish they had never gone. It's something that really chilled them and was actually really haunting. But at the same time, they are kind of glad, you know?
It's one of those places that I don't think you could know if you should have gone until you're there. I'm sure it could be quite.. humbling (maybe not the right word) to go and feel all that.
If I were there, I can't be sure if I'd want to go see it or not.
Helpful, aren't I?