This hotel is not in oia! The map doesn't work out the address properly. We were surprised to find on our arrival at oia bus station that the hotel is in another village called Baxedes, which is 4km away on the north coast. We luckily caught one of the few buses to Baxedes (taxis wont go, it's not far enough) and then walked 15 minutes east to Vrachia.
Apart from this, the hotel is just fine, it is right on the beach with its own steps down, and the owner was nice enough to pick us up in his van (by chance) and take us to oia on our first morning where we could rent an ATV and have easy travel for the rest of our stay.
The room was clean and airy with simple but nice decor, kitchen served well enough for a takeaway, and the breakfast provided was basic but welcome. No problems with air con or hot water, and we still got the gorgeous oia sunsets!