I chose Casa Masoli from reading reviews in TripAdvisor.
We are in Ravenna for 3 nights and wanted reasonably priced accommodation, breakfast, parking and a nice place to stay. We got just that!
Fabio is a welcoming host and very helpful.
The breakfast excellent. Rooms large with high ceilings. Some bathrooms have a bath. Spacious showers with good water pressure. Large comfortable beds and quiet location, but only a street away from ristorante's and main shopping strip.
The Unesco listed mosaic sights are an easy 10 minutes walk.
Finding the B and B is a little tricky, but a good GPS does the job.
We had a Chrysler Voyager, which is a large vehicle and negotiated the tight lanes and streets with few problems.