Blue Bianco is in a beautiful location, convenient to all of the sites in Oia. Wonderful service and communication before and during the stay. Sofia helped us find and arrange things to do and see. She even called places to make reservations (car too!). Sofia also met us in a convenient location with a strong porter to carry our bags. We traveled pretty light, so it wasn't a big deal, but even if you have a lot of luggage it won't be a problem. Wear good shoes though because, like everywhere in Santorini, there will be plenty of stairs.
Outstanding accommodations - had everything you will need. Very clean and shiny as well. We loved our time here and will certainly be back at this location next time we come to Santorini.