Below some items that are important for me towards accomodations / interaction with host Cath:
Communications: quick reply, helps to think for solutions for possible bottlenecks.
Checkin/out: very flexible: my late arrival was not an issue, easy key delivery (through her brother).
Location of accommodation: in very nice, safe and accessible neighbourhood, 5 min walk from public transport.
Accomodation: good base to come to after work / good base to discover Oslo. Apartment can be used, with clear indication of private things.