We loved Luca's apartment. The location was perfect, looking straight out onto a lovely square, and very close to the Arsenale water taxi stop.
Luca's mother met us when we got off the boat, even though we were delayed and so it was very late in the evening. She was very helpful, explaining everything in the apartment, and had baked us a delicious tart!
Everything you need was already available in the apartment, (air con was fantastic) and there's nice restaurants and shops nearby. The WiFi was good too!
We'd definitely recommend the apartment for your time in Venice.