I stayed at Sergio's place for a month for working remotely and sightsee Porto. The studio is nice, cozy, and well equipped so you can quite easily live here for a longer period of time. The internet was pretty strong and stable so I didn't have any troubles with the connection at work. Since it was a November, the well working heater was definitely a plus. Also the communication with the host was really easy and helpful. However, the studio didn't have a stable electricity power – when there were 3 devices on (for example, the heater, cook and the kettle) the electricity was turning off (it happened to me many times especially in the morning or while cooking a dinner). Also, the studio gets humid very easily so if the windows are closed the mold appears near the window frame and in the bathroom and it gets stinky. I don't know why but in cabinets in the kitchen there's something that looked like a white mold and it was also stinky. And the last thing, there's no grocery store nearby – you have to walk for about 15-20 minutes to get to the nearest supermarket. All in all, for a short visit it's a nice place to stay. For a longer stay, it might be not that perfect but it depends on what someone looks for.