Ersi Villas was a lovely spot to stay in Santorini - just out of the busy hustle of Fira, but easily accessible (a 5-8 minute walk to all the activity). Bus stops were close by, and we had no problems getting from Ersi Villas to anywhere else on the island.
Elias not only generously picked us up from the airport when we arrived, but also got up early to take us to the bus station when we departed. This was above and beyond as it was very early in the morning (about 5:15am), and we had not expected him to offer this. We were very grateful for this. It is clear that Elias works hard to ensure that his guests are well taken care of, as he is accessible in the office all day long.
The villa itself is beautiful and very clean (we noticed constant cleaning around the grounds everyday, as well as our room). We enjoyed having a kettle & hotplate to prepare light breakfasts, and a fridge to store some of the very delicious snacks from a bakery nearby.
To North Americans, the beds are perhaps not as thick/padded as we're used to (springs were easily felt), but seemed consistent with other beds we had in Greece. Wifi did not always work well, which was difficult for us as we needed to communicate with Marty's son at home, but seemed better early in the morning or nearer to the office - so some rooms may have better connection than others.
All in all, however, we enjoyed our stay and would definitely recommend Ersi Villas to others.