We stayed at Olga’s place for 3 nights mainly to visit Biennale. The place is just around the corner from Arsenale and short walk from Giardini, and was very convenient if you’re there for Biennale. We really appreciated the ac, and the access to fridge and washer since Venice was pretty warm and humid. The place does feel more like a hotel/hostel, but Olga is very nice, friendly and accommodating.