We stayed a couple of nights at Joana & André’s guesthouse which was lovely. We had a very nice welcome from André for check in and he had lots of great suggestions on places to visit etc. Although they had several other guests in the other rooms, it wasn't too noisy in the mornings and evenings. Our bedroom was right next to a bathroom which was convenient. Location wise, it's very close to the metro station and a 10min walk to the centre.