Eugenia and Luis are very nice people, they give good advice (restaurants!), they speak good English and the appartments are really central in Porto. Luis helped us printing our flight-tickets. Every apartment has it's own atmosphere. They are compact but comfortable for sleeping, sitting, kooking en showering.
Apartments Branco (White) en Naranja (Orange) are at the more silent backsite with a nice view of medieval small streets. Pink en Grey are in front and have more light, have some more space but also some noice from the street. We love Porto and this spot, so we will come back.