All in all we had a wonderful time in Lisbon and in Tiago's apartment. He was very helpful: he gave us recommendations for restaurants and sightseeing and he even answered further questions and helped us with trips around Lisbon.
The apartment is beautifully decorated and furnished. We adored it.
It's not directly in the sighteeing areas but it's easily reached by tram.

The only thing we would criticise is the cleanliness. It could have been just a little cleaner in the apartment.

All in all we would still recommend the apartment to other travellers! It's lovely!