Several scenes are provided, e.g. the lounge, kitchen, office, roof garden and basement and outside. They all are part of the same 3-D model so you can explore the house by flying through doorways. You can even go outside through the back door, whereupon the sim allows you to explore the hills round the house and even go for a trip over the sea. Sound effects are adequate. Collision detection works flawlessly, any object which is displayed can be hit or landed on - including the sink taps in the kitchen, although I think I'd get the model wet before succeeding with this one.
Several viewpoints are available - fixed standpoint, or attached to model, plus variations on each.
To explore the house you have to follow the model, but this is tricky as there is no static reference point. I've managed to fly into three rooms from the living room, but getting back in one piece has so far eluded me. However once you get over that the simulation is surprisingly realistic in terms of the model response. You can slither the model across the floor like the real thing, using the throttle, pitch and tail rotor controls. Initially I found this oscillation difficult to control however, about an hour on the sim I was learning how to control this automatically, by juggling the throttle against the pitch control.