This level is a little unique from others in that it includes a small difficulty setting level prior to entering the main map. Nothing fancy here, but a nice touch.
The level itself, upon first inspection appears to be rather blocky. All the rooms save a few are perfect squares and the architecture is nothing amazing to look at. However, the feel of the level is consistant and the challenge rough. I played this map on normal difficulty and found myself fighting against some pretty tough odds.
Overall, this level is a little above average. There are no shortcuts (unless you want to rocket jump all over the place), and the level leads you down a pre-determined path. Good balance of ammunition for the amount of monsters.