If you're like us, you may be a bit confused by the pictures. This one Airbnb listing is for two places, a studio and an apartment. Message Maria in advance to know which one is available for your dates. We stayed in the apartment. The blue door you see as you walk through the gate is the bathroom. It is nicer than the pictures make it look. It is not an issue that the bathroom is accessed from an outside door, there are others places in Oia that are the same. You cannot see the front door from the Airbnb pics, it is down one step to the right of the bathroom door. The interior is as pictured and we found it very comfortable. The apartment is one level only. Any other doors you may see in the pics are not for the apartment. We did not meet Maria, and since she owns many properties, I get the feeling this is normal. We did meet two of her employees, an assistant also named Maria and a porter named Vasilli. Both were a pleasure and extremely kind and helpful. Vasilli was staying in the studio while we were there.
Oia faces two directions. Casa Sofia is not facing the direction with an unobstructed sunset view. However, the view is only a brief walk away. And the view of the caldera from Casa Sofia is very beautiful.
We were extremely satisfied with our choice and would stay there again.