Casa Violante is a fascinating curated family home. The living room has an introspective collection which is especially nice since there is no view from the light well the bright windows face into. The top floor location allows you to marvel at the ancient rafters and the well maintained roof, but be prepared for the many, many stairs which require a little coordination and is better with minimal baggage. It is clean and comfortable, especially the fresh nice linens, although the bathroom is on a European scale and has tight clearance which is good to keep in mind if you need space there. I'd allow 15 minutes minimum to walk to Piazzale Roma; this short distance is one of it's best attractions, especially for an early flight.
And a Conad market is closeby which is also convenient!
You can walk to San Marco in about half an hour.
Easy Suite is a helpful company who hosts this apartment.