Location: Cannot be any better. Right in the middle of the historic center, near the fish market and the Piazza del Duomo, via Etna, etc.
Facilities: Super interesting. It's an old palazzo and one can experience how affluent people in Sicily used to live in the past. But it's impressive how the hotel was updated so that all modern amenities are available. Especially, the bathroom is large and superbly equipped. And double-paned windows.
Service: It's not a 5-star hotel so there is no fancy stuff like turn-down service. But otherwise the ladies at the front desk are super friendly and efficient.
Food: Breakfast is adequate, this is not a 5-star place with a lavish spread. But the service was friendly and competent.
Conclusion: A very solid 4-star hotel in an excellent location.