7 years I m doing this kind of business. I have 7 apartments in center. And on booking.com I have 9,4 points from 10 (300 reviews). If my all guests need any help in the apartment, they have it fast. I give all information what they can need about my flats and about city and location around. On airbnb I m 'super owner' ;) I will try to do all for the comfortable staying.