We stayed here for a month while looking for permanent accommodation in Lisbon.
The apartment is really big. Clever use of the space means a family of four can live and work here comfortably.
It's very conveniently located to lots of attractions, shops, restaurants and transport.
It's a really old building, so you need to deal with the typical old building issues, but the host sorts any issues out pretty quickly.
You get a really good workout climbing 5 flights of stairs every day. The good news is that the stairs are nice and wide and not too steep, so getting your luggage up and down isn't an issue. I'm much fitter now than when I arrived!
The AC is a life saver in summer.
You can sit on the windowsill with a glass of wine and enjoy an incredible view of the city and river.
We grew quite attached to the apartment and were sad to leave after our stay.
The Internet is a mixed bag. Download speed is fine (and the apt comes with Netflix), but the upload rate is a real problem for video conferencing. I switched to using my phone for important work calls.
Overall though, this is a fantastic apartment and we'd definitely stay here again.