We self-checked in and lived in a fully functional home (including a bathroom and a kitchen staffed with most necessities, including Tim Horton's coffee ;) ) that we only shared with the person in the other room. Basically, the basement area seems to be mostly for AirBNB use. The perfect place if you plan to cook a lot, as our roommate did.
It was a very pleasant stay but not the present-host AirBNB experience I was used to, we probably briefly interacted with hosts max 3-4 times in three weeks. We spoke very little but whenever we would need something, we would message and receive what we needed, including scales to weigh our luggage before departure - much appreciated.
The basement is really nice and cool which was great as Vancouver was rather hot during our stay. The girls who lived in the other room was also very nice.
The main downfall (maybe it's the case with most homes in Vancouver or not, I don't know) is the level of noise, both from the adjacent kitchen and especially from the floor above! You hear everything, from most footsteps above and conversation to the exhaust hood just outside your room - you will need the earplugs.