We had an amazing experience. Grecia came to pick up us in the Vaporetto station and also indicated nice places to visit in the city.
The apartment location is amazing, approximately 2 blocks from Piazza San Marco. We did everything by foot.
The place was clean and the apartment is very nice, with new bathrooms and good beds.
We locked the door with the keys inside and Grecia promptly solved this problem. Also she helped us to schedule a taxi boat, since our flight was in the early night. It was evident she made everything to provide us a great experience in our stay.
The only attention point is that the apartment is in the 4th floor and there is no elevator. For us it was not a problem, but it may be unfavorable for groups of older people or composed only by women, since it is hard to go upstairs with the big luggage.