Fast layout with decent game flow and well sized areas for intense encounters. It is a simple Gothic stone and steel theme with a few minor texturing issues. Connections from section to section are pretty good with the teleports helping to speed it all up. You are never far from a weapon in a 4 player DM and haste can help to bring a smile to your face. Bots play without any obvious problems.
Check it out if small DM games suit you.