The only thing i could suggest to improve the almost perfect experience i had in Encostas de Nantes is to increase the wifi signal in order to be reachable inside the rooms. All the rest was really perfect.
I could say by far that it was the biggest room i have haver stayed in. My 3-years old kid was even able to run inside it as if it was a playground. The bathroom is also huge and very clean. There are electric window shades both in the room and in the bathroom, as well as a great balcony where you can see the city centre of Chaves. The staff (a middle aged couple) is very friendly and the breakfast is very good (bread, croissants, cheese, ham, butter, jam, coffee, milk, tea, orange juice and very tasty regional pastries!!). It also has free parking, air conditioning and wifi, although you can not access it inside the rooms (i had to go to the hall to get the signal in my ipad). Mr Antonio told me, however, that it will be solved pretty soon with a wifi repeater in the first floor.