I was in Porto and in Porto Rivertop apartment only for one day and one night, but I can say that the experience was fantastic.
Porto is beautiful and is worth visiting for more than a day. But what impressed me the most was the quality of the apartment, which has a superb view, just above the river and facing on of the main bridge of the city.
The apartment is very well decorated and has everything that is needed for an holiday. The location is fantastica, just close to the main attractions. I would 100% recommend this apartment.
Despite having read the comments of other customers, I was surprised with the quality of the hosts wich are very helpfull, provided an outstanding service, and detailing what to see and to do in the city. I was really satisfied with my visit.

I will be back :)

Jaime.