We had a lovely time staying at Residenza Dani. We phoned Daniela from the airport before catching the boat and she met us with her daughter at the Arsenale boat stop and escorted us to the apartment. She was most helpful and pointed out various useful shops and showed us around the apartment which was very clean and exactly as described.
The apartment was ideally suited to us as we'd come to Venice for the Biennale and it was a short walk to both Giardini and Arsenale. It's a pleasant twenty minutes walk along the seafront to San Marco and the main tourist areas. The location is beautifully quiet but not isolated and has the atmosphere of a village. It's less than two minutes walk to a bakery for your breakfast rolls, or to a cafe for a coffee. Plenty of restaurants for dinner in Via Garibaldi, again two minutes away. You can sit on the balcony, sip a glass of wine and enjoy looking down at life, watching the boats and people chatting on the bridge.
We'd definitely return next time. It's absolutely ideal especially if you want be away from the frantic rush of the tourist areas.