I'm spending a lot of time using our editor to make rooms and then assemble the rooms into houses. Then I haunt said houses. It's good, wholesome fun!
Here then is a step by step account of making a room:
First we pick a size - they can be any size we want, but we have some pre-sets that we've named small, medium, large, etc...

Here, I'll make a large room, not a small one, so there's plenty of space for mayhem and terror.

Then I pick the textures for the walls and floors. I'm going for a parlor-type of room here, so some classy wallpaper and hard wood floors seems appropriate.

You'll see that I also put in some furnishings around the edges there - a desk, some suits of armor, some chairs and some plants. Obviously the room is still way too bare though...

A snooker table seems like it would be fun. An a couch, so I moved the chairs around to make space for the setee.

Next come the extra dressing and textures - a nice rug, some pictures on the walls, and a couple of windows. Now it's a room you might want to hang out in, which isn't the vibe we're looking for at all. Let's Haunt is up a bit.

Some bloodstains and footprints, grunge in the corners, tears in the wallpapter and thorns on the wall. Tip over a chair, tilt that paining. Something bad has happened here, and it's primed for something worse.
You'll notice there aren't any doors. Those come later, when we assemble the rooms in the house editor and slot them together. So any of the walls can have a door in them as needed. That room's not quite perfect. I'm not sure about those thorns if I'm honest. But it only took me about ten minutes to put together, which is pretty quick, I think, and is allowing a wide variety of terrible spaces where horrifying things can happen.