Freakishly good. Lots of fast combat, very exhilarating. :) Detail was doomish, but when your blasting through a map like this, it won't matter. You won't have time to admire the scenery because you'll have a shambler and 15 other guards after your ass.
As requested by Trinca, I recorded a demo. This was my second time through, the first time I played I did not record.
Very nice map Trinca :) I look forward to your next.