We had a lovely time in House Nubia. It's a beautiful home and it's walking distance to the centre. We didn't have a chance to meet our hosts, but they gave us clear instructions on everything we asked for. We had a bit of an issue with the WiFi (no WiFi during our stay, but not the hosts' fault) and they promptly responded to try and sort it out, (in either case there was plenty of free WiFi around the city, and the hosts compensated us). We would definitely recommend it and would be happy to go back!