One huge house, this map is big. The download is massively massive. I would not want to live in this house, cluttered rooms and one stairway. On the other side it makes a good death match. There are many rooms, and bacially a secret is around every corner. This is my fourth map ever made.
However... where's the front door? Why are there no windows? Those things really add to the feeling of a house.
After all, I don't think it would make a very good deathmatch map. Too small corridors, too cramped, too slow. Since you're interested in details and secrets, may I suggest you focus on a singleplayer map first?