Combat against normal guests and cops has so far been extremely easy and effective. You just have such overwhelming force available, you can simply decide to ambush an enemy and they go down.
... yeah. Tested it against an early arrest squad. They didn't make it in the front door, got a single round of action. Zero resources expended, 3 (out of 10) incapacitations, +4 ex-cops.
On the one hand, I'm only in the midgame and am playing with the large manor, but it also reflects my experiences with the smaller manor. You have to be a *little* more careful but not much.
But like. After the first wave, the threats have been less 'threats' and more 'free resources'.
I'll see how far I can go.