This is an ideal location in the most historic neighborhood of Lisbon. But there are two significant caveats:
1) You must be able to walk up steep hills.
2) If you are sensitive to fragrance, there is some sort of scent in the air of the apartment. I got used to it but wish it wasn't present. Otherwise, the apartment is excellent.
This is a true neighborhood. Also, the locals I met were super friendly and helpful.
The kitchen is very good as is the bed.
The Airbnb hosts do their best to quickly communicate and accommodate.
Tips: Excellent authentic fish restaurant is Maçã Verde located two minutes from Santa Apolónia station. But their salad is weak.
For excellent salads, go to Arts Cafe which is located a few minutes from Santa Apolónia station at the spot that takes you up the hill but it is on the main street next to a bicycle shop. Both Arts Cafe and the bicycle shop are run by incredibly nice people.
Lastly, if you need to go to Oriente - take the train instead of the Metro. The train is one stop and takes 8 minutes. The Metro requires a transfer and takes 45 minutes.