This is one of the best... no... the best apartment I ever stayed in Lisbon. But be warned - there's a 105 steps to climb to the 5th floor. So I would only recommend this to these up for the challenge. Though to be honest - it's not so bad at all. A small hint - hope the host doesn't mind - apartment has an amazing roof access , with spectacular view.
The place is absolutely huge and modern with extreme care to look like it's 1899. From furniture to wall paintings and magazine prints, you'll get transported back in time.