overall it is a good place, however, the hotel has several flaws.
the old part of the hotel is beautiful, and the room decor is also very elegant. the bathrooms are all marble, but as you see in the pictures they are not very clean, both the shower/tub and toilet itself have encrustations.
the overall setting is nice and historic, but the modern additions have completely ruined it.
breakfast is good, not great, but good.
the thermal pool is open to the public, so it gets very busy. the hours of operation are complicated and differ between each other.
the hot steam/sauna natural grotto is nice but again it is open to the public, you have to make reservations to get in, and it costs additional money. so there is no real spa available.
so overall it is not bad but definitely what you're expecting from description.