The hosts were very helpful and responded quickly. The apartment is on the 2nd floor, is in a great location, within walking distance to all of the Porto sites, and to restaurants and shops. The studio apartment is lovely, has a comfortable bed and couch, everything you need in the kitchen. The street sounds can be noisy, but that’s probably true at all apartments in Porto. We just use ear plugs. We would recommend this apartment.
There is a steep road to the apartment, but there are a lot of steep roads in Porto. Doubt you could find an apartment that you wouldn't have to walk a steep road to get to.