Honestly, I am surprised this is a 4 star hotel.
The good: you can't ask for a better location. Right in the historic center with gorgeous views in every direction. Not too far from the train station and a -15 minute walk from the Quinta da Regaleira. Restaurants and cafés practically at your doorstep. The balcony offered a stunning view of the hills.
The bad: staff was indifferent, at best. The room had mould! Mould in the corners of the bathroom, on the balcony curtains. Stains on the walls- particularly concerning, black and brown stains on the wall next to the toilet. Black scuff marks in the bathtub, hair in the grout. The heater would only blow cold and the insulation was poor so it was a chilly night. Not that I could have slept well on a mattress that was pure springs and a frame that moved every time I did. And for an extortinate €19, a breakfast on par with something you'd find included at a chain hotel in the States.