Marios was a wonderful host; he arranged our transport from the port and to the airport and made himself available for tips and requests.
The villa was beautiful, relaxing, and just what we needed after an action-packed previous few nights in Mykonos. The place had a rainfall shower, a private hot tub, beautiful views of the east coast of Santorini, air conditioning in both the living and bed rooms, and overall just a well-appointed and well-furnished experience.
The location (Vourvoulos) was a bit remote, but it was very convenient for our needs. Marios recommended we rent a car but we ended up walking to Fira (35min walk) and then taking the bus to various villages in the island from there — the buses were very cheap, air-conditioned, and departed every 20 minutes! We ended up checking out Fira, Imerovigli, Perissa/Perivolous, and Oia during our 4 night stay. This worked very well for us! Some may find having a car or ATV more convenient.
Definitely recommend staying here for anyone who wants something different from the standard-fare overpriced hotels.