I highly recommend renting Alvaro's apartment in Porto if you're planning a trip to the city! The location was perfect, easily walkable to many of the city's main attractions & the views from the apartment's upper floors can't be beat! Alvaro was very easy to communicate with & provided lots of helpful tips & recommendations for dining, etc. during our stay. We had 4 adults in our group & there was plenty of space for all of us to stretch out in the living room.
One note to be aware of: the hot water runs out quickly (but it also replenishes if you give it some time!), so plan to space out your showers a bit in order to avoid cold showers for multiple people in your group! Don't let this deter you from renting this wonderful apartment... you won't be sorry you did!