The hotel itself is a work of art, staff are numerous and provided great service, and the 3 different dining options were great.
The bistro just across the street had the best pasta and pizza we have had so far in Italy. The fine dining option was great, and they acommodated allergies well.
The only thing to be aware of, is it is a bit away from everything (can be a positive as well, as it is quiet and peaceful). Not really a major negative, you just have to plan your day around when the ferries or trains come from Lecco. About a 15 min walk to the train station which is very scenic, or a quick taxi if you have bags.
It is more like a resort than a hotel, but quiet small and friendly still. This just means that you don't even need to leave the hotel as there is lot's to do and various dining options.
Spa was amazing and was truly luxurious. For a price of 20 Euros each, that is very reasonable compared to other hydrotherapy spas.
Rooms have high ceilings, technology like touch screen lights and modern TV was great.
The stay was luxurious and amazing. Highly recommend promessi sposi!