Really good entry. Lots of interesting mechanics and good puzzles with no waste. I felt smart when I put the crate on the pressure plate. I really like how the level design makes the front door a "right there" map shortcut when I first open it. Each area I spent a lot of time in because that's what it took to complete it. It reminds me of the old really good Quake maps where you see an area but you don't know how you're going to get to all the cool spots and then the game pays it off letting you solve puzzles to get there. Really a good entry!