We've stayed at the unit 4.
What we've noticed first when we've arrived late to the night was the lovely smell of roses by the gate, which set the place apart from the rest of the town.
The small "courtyard" was much quieter than the rest of the town and with all the flowers and the fountain a nice place to chill in the evening.
The unit itself had all we needed. It also had a back door we've used to ventilate during breakfast and in the evening for a change from all the AC.
The building is located in the town, close to all necessary amenities. It's a short walk to the center, following the Geronimaki street.
There is a bus station for the line 5 nearby and a full day ticket can be bought for €5 straight from the driver.