I agree with you Big D, it is very enveloping. One of the things I like is the option to "rescue" the Little Sisters instead killing them. You might not get as much "Adam" but its definitely a better way. From a fathers POV with nothing but daughters its a nice change. I know this sounds weird, but when you do actually save one the music that is played and gestures that are made by the main character and the Little Sisters, evoke some pretty strong emotions with me. I feel like I'm saving one of my own daughters strangely enough. Anyways, its a cool game. One you leave an area and come back through it for whatever reason don't expect all the bad guys to be dead, because most likely some new one have moved in...