This apartment is fantastic, great facilities, very clean and central - you have a tram line straight past the door but with excellent sound proofing don't even hear it.
HOWEVER this is not the main reason why you should stay here - the rental company managing this place are by far and away the most amazing bunch of people. Not only did they look after us brilliantly during our official stay, they really stepped up to the mark when our return flight was cancelled very late.
They answered their phone straight away, spoke to their boss and managed to find us an apartment for the night. This was at half ten at night when the Portugal vs Switzerland World Cup Qualifying Match was on so the city was full.
Even more amazing by this time we were struggling to find a return taxi to take six people and they arranged a transfer minibus to collect us from the airport and take us directly to the apartment.
A-MAY-ZING! Stay here regardless of airport dramas you will have a fantastic time!