Our stay at Ognissanti Terrace in early June was wonderful. Tobia met us at the ACTV water bus stop, (Our stop is Zattere), and helped us get our luggage over the bridges and up the three flights to the apartment. He went over the neighborhood and Venice with us on a map and was really helpful. Tobia was also very responsive - when we requested more towels he supplied very quickly.
The apartment is very well equipped with everything you need to make a meal or coffee. The three bedrooms and bathroom are downstairs, all with lovely views. Note that the shower is pretty tiny - we used a lot of towels mopping up and as Venice was rather humid they didn't really dry, hence the need for extra towels. Upstairs there is a living/dining/kitchen room with a great little terrace off it planted with herbs and fragrant honeysuckle - a charming spot for a glass of wine or a meal. The views from every room are really pretty. The neighborhood, Dosoduro, is pretty quiet in general, although be aware that there is a rather large construction project in progress across the little canal which begins around 7am til 6pm week days. It didn't really matter as we were out most of the time. Dosoduro is a fabulous area with great shops and restaurants. It's tough to go wrong with restaurants in Venice - the food is amazing! Don't worry about getting lost in Venice - you will - repeatedly - but Venice is small and you're never really lost - it's all part of the journey!
Ognissanti Terrace is a perfect base while in Venice with comfortable spaces for several people - we highly recommend it!