The apartment is nice, for 2-3 days is fine. Great location, the supermarket was a great choice for saving some money. We arrived super early in Lisbon, so we left our luggages to the office and the cleaning lady brought them to the appartment where we did the check in at 1 pm.
The building is quite noisy, you could hear everything from you neighbours - also some spiders, nothing terrible but important to know if someone is scared by them.
There is a great restaurant closer by " Floresta das escadinhas" unfortunately we found it the last day! beside this place we were not so lucky with food :(