Key things that are important to me that I was pleased to have in my stay was:
a bathroom connected to bedroom
a good powerful shower with good function of temperature (which usually I don't find many airbnb's I've stayed in) their shower had the 2 different heads too - great plus.
Nice & clean
Cosy comfortable room
I wanted the radiator on in the morning which they accommodated - appreciated (thank you)
The above are very important plus's me to me
Parking was a bit challenging but they helped to accommodate