Location: Excellent, on Ortigia island but close to mainland. Near open air market & many good restaurants.
Facilities: Common areas are superb & luxurious. Room is OK, not great. Bathroom too small, especially shower, which also leaks after each use.
Service: At breakfast, service is excellent. Housekeeping is OK, sometimes good, sometimes a bit off.
Food: Judging from breakfast, restaurant probably very good.
In conclusion: If the bathroom was larger and better, it would truly be a 5-star experience, otherwise I feel it's only 4-star.