Now when it has gone a couple of days, I can say that I love this feature.
As said in the building thread a while ago, my sim is currently building herself a house, but in the meantime, I'm investing all earnings in real-estate, so it can take a while. The thing is, I don't feel the need of any house: Even with my hobo-sim I played a while ago there were some limitations to staying at people's houses; got to be friends; if you're outside at 23h, you can forget sleeping in a bed etc. Now, I can come and go whenever I will, anywhere, for as long as I like!
It still feels like I had a stroke of incredible luck when I decided to make her into a ghost.