We had difficulty finding the property as I forgot the name was ERATO apartment instead of TONIA. So if we asked local people about Erato, we should have found it easier I guess. And I think they should stress the name to the guests (like: please remember/ask direction for Erato apartment) instead of such general sentences like "Welcome to Erato Apartment", which could make us easily ignore it. Other than that, the staff did a good job to ensure our pleasant stay.
The room was nice and clean - they have staff clean it everyday. Quite good location in 20-30min walking distance to the centre Fira but the road was a bit dark in some part when I went home at night. But that's still a good value for such price. Wide view over the other side of the island, you can see an ordinary scene of Santorini with blue sea and sky and the nice horizon, not the tourism and properous one. However you should be awared that they do not offer shampoo or shower gel, just small soaps so be prepared.