I ended up staying at Charming Palace Corte del Teatro instead of Ca’ Miani. It was a beautiful apartment with a terrace and great view over the rooftops of Venice. A warning though that Charming Palace is only suitable for people who are happy to walk up several flights of steps - but it is worth it! Very stylish, spacious and comfortable, close to Rialto but in a quiet back ‘street’ and above the hubbub of the alleyways. Leave your suitcases at the station/airport and bring a backpack instead. You will enjoy staying at Charming Palace!