Porto is a very charming city that definitely worth a week to visit. The staying in Sílvia's place was good according to the money we paid. Sílvia's guidebook was helpful and the small blackboard made us felt welcome. It is near to a subway station and walkable distance to the historical center. It is really cheap for two person but though there are still things not so good people need to consider carefully. First the noise is really loud all day long, u feel the buses and cars are just next to you. Second, there is no central heating, just a small electronic heating which actually barely helps when the temperature is low, me and my husband both got a bit cold after the first night. Also the room was not so clean there were white spots on sofa, but we didn't stay on sofa so much so it doesn't matter for us. If you are on a budget this place is a good choice, it worths the money. If you wanna a comfy staying in winter better not, it is really not so pleasant when you got a cold.