The trek through Marlow's ship, the Anesidora, is a final refreshing change of pace before the game throws you into the thrilling finale, since its basically a straight line to him with almost no enemies sans a lone Facehugger, and only a few puzzles to deal with.Also helping is that the game finally allows you to use all the resources you've been saving, making exploring more rewarding, and generally allowing the player to take a breath for a while. You can run around all you want and you don't have to worry about the xenomorph jumping down to kill you.