We stayed for 2 nights at Rialto Suite 1602 in September. The location is fantastic, near Rialto bridge, and a couple of markets. There were also a row of bars near by, and they were really busy and happening. The apartment itself was beautifully decorated and clean. Both bathrooms are spacious, the kitchen is great with all mod cons and we cooked our own breakfast for both days. For us the highlight was how helpful and accommodate Lara was. We arrived on an early flight and she messaged me directly and offered to pick us up from the restaurant where we had breakfast and took us to the flat early (before the official check in time) so we can drop off our bags. Check in procedures were clear and simple, and Lara offered us many tips about Venice (and where to get the best spritz).
The apartment is on the 2nd floor so expect carrying the luggage up two flights of stairs. Being on the 2nd floor is still quite close to street level so expect a little bit of noise but didn't really bother us much. Would be good if there's better ventilation in the bathrooms and also if you are planning to cook, you might have to buy oil, salt and other essential condiments yourself.
All in all a great stay, and definitely recommend it over staying in a overpriced and mediocre hotel in Venice.