My mother, sister and I spent 4 nights here in May and thoroughly enjoyed it. The apartment was clean and modern and had everything we needed for our trip.
The location is fantastic for getting into the main square and Cathedral (a 10 minute walk straight down the road!) The only downside for some would be that the road is quite busy late into the night as many buses use it. This didn't bother us but may be an issue for a light sleeper. The double bedroom is at the back of the building and was quiet though.
Check in was easy as Silvia was easily contactable and met us on arrival. She was very friendly and helpful and talked through a map of the city and gave us tips on how to get around.
The Ristorante Accademia on Piazza San Marco which is a short walk from the apartment is a must - we ate there twice!
I would thoroughly recommend staying here!