tl;dr Gravitate was an OK stay.
Pros: location and view
Cons: poor ventilation, bad wifi, and communication break down
Elvira was very helpful from the start. She accommodated a late check in and also arranged a taxi for us. Upon arrival, like everyone else states, the view is fantastic. The room itself is fine, spacious. The handwritten note and complimentary beverages were a nice touch as well.
Unfortunately for me it didn't make up for the fact that our bed sheets were damp every night due to poor ventilation in the room. At first I thought it was just poorly dried sheets and asked for it to be changed but it turned out that it was just the lack of ventilation in the room because all of my clothes I left out were damp as well the next morning. Be mindful that the room is a cave like suite so there are no windows, poor ventilation, and barely any wifi connection in the actual suite.
Otherwise like everyone else states, the location is very central--10-15 mins walk to the main town called Fira, a bus stop at the top of the hill on the main road, and lots of restaurants and markets nearby.
Lastly, a note about the taxis. If Elvira arranges one for you they'll ask you for your hotel name. This was mighty confusing for us because we're not staying at a hotel and no matter how many times I threw out "Elvira" "Sensyo" "Gravitate" "Airbnb" the taxi drivers did not understand. We got yelled at multiple times by the frustrated taxi drivers and even nearly missed our ferry ride back because of the confusion and delay.