Manuela's apartment is located very centrally in Porto, just a minute from the Sao Bento metro and the beautiful train station. You can walk to many great buildings. The apartment is lovely and spacious, it even gets great sun in the morning and evening. They were very good communicators, and sent us a great list of places to eat and things to see.
We were two couples, so the twin beds were not ideal for us, but they were exactly what is described in the listing. So this was a compromise we agreed to in advance.
Overall, we would warmly recommend staying at this lovely, clean and friendly apartment.