Our daughter was in a serious horse accident in North Carolina last October. My wife and I went out and brought her back to Missouri.
We put her up in our AS in our backyard (I have a pad with lights, water and sewer hookups).
She has a cat. She was in the trailer until the middle of March.
There were a lot of issues living in the trailer that long, we packed the nooks and crannies with insulation, luckily pipes only froze a couple of time and since they were pex there was no damage only inconvenience.
She didn't like the shower (1978 31' Sovereign
rear bath) so she used our back room bath.
Emptying the black water tank.... when traveling the black water tank contents slosh around and it is easy to dump at a dump station. when stationary that agitation doesn't occur and I'd get agitated!
Once she got into the Airstream frame of mind she didn't mind living in a silver tube or silver corridor-- the terms are interchangable in her mind.
She's in a house now and likes the room.
We have used the AS as a extra room for when my brothers came up for our Mom's services. My wife's brother and his wife stayed in it once when they came to visit their daughter who lives down the street from us.
So, only to family members, only when parked in the yard and I would never loan it out to anyone for a trip.
And I think that it would be pretty 'nervie' for someone to even ask.