Very nice place in Mesaria . Walking distance from the bus station (less than 5 minutes), and less than a minute from a big supermarket. Also, the interior of the apartment look awesome, and the outside pool is great.
The greatest thing, though, was the host Antonis: he brought us to the airport for free, let us leave the luggages in the lobby and even drove us to the beach for our last swim in Santorini. Unbelievable!
I highly recommend this place in Santorini, go for it!