Yes, all of the above ++. Very nice looking. Performance very good, as a small map should be. My only niggles are from players standpoint. A SLAM ?!! And no mag, to boot?? ayayay.( or did I miss it? I ran around lookin for it...) The false walls left me scratching my head a bit, why don't the pipes just have a grate or debris in them? Similarly, orbs bouncing off the sky is a little unusual. I did like being able to control fall damage from the top level.
As for props, I didn't even notice they were there, which is a good thing. The whole thing feels natural and believable, architecture top flight.

I had a quick run to see it in action. The phys prop placement is nicely done, yet a bit counterintuitive (hidden in the corners). People spawn with the ggun in their hands so they're hardly an obstacle and hiding them in corners isn't good for the action IMO.

I just hear the "avoid the map being to cluttered" argument a little often as an excuse to turn a HL2DM map into a Quake map. So I'm getting tired of it. I've never seen a HL2DM map that has actually been that cluttered by physics props. People are so scared of this that a lot (of the best) maps are very boring physics-wise.

Lighting is delicious. Layout is smooth. Brushwork AAA+. It's just a bit irritating that an architect put so much fine detail on the top part only to cover the very raw, industrial bottom. But we already had that

Yet another stunning map. Well done.