Pros: very responsive host, good location considering the price (and a decent location overall in Porto), big room, fully equipped kitchen, two bathrooms, overall clean/tidy.
Cons: Host was late for checkin, wifi unreliable (doesn't work in bedroom at all, poor signal at times), powerpoints went out in bedroom one night, no hot water for shower one morning. Some of these issues may have been easily fixed, or perhaps caused by lack of communication from the host about how to use the shower/powerpoints. Still not something you should have to deal with on a 2 night stay.
Summary: For the price it's not bad and I'm not disappointed, but you can probably find somewhere else in Porto for the same price with a better experience.