Pietros apartment is very well situated with a small but very nice balcony to a canal allowing us to have breakfast outside every morning, watching the deliveries coming in. Castello is a great place for visiting Venice when you look for a place outside the tourist areas. However, in Via Garibaldi (about 5 minutes away) are lot of fine restaurants including a very good bakery.
The apartment is comfortable and quiet also clean. However the kitchen is somewhat basic but we only used it for breakfast and this was ok.
Check-in was very well organized and very easy.
We recommend staying with Piero.