Flat is in a great location. <5 minute walk to a metro station (Marques de Pombal) and to the starting point for the sightseeing tour bus. Restaurants within walking distance. And flat has an elevator/lift (which is a bit rare for europe). Verrmy convenient to bring suitcase(s) up and down.
The only complaint I have is that other occupants in the suites made alot of noise at all hours of the night. I woke up a few times during my stay to someone cooking/cleaningin the kitchen at 6am one day, someone talking loudly on the phone and the entry door being slammed shut (when it shuts on it's own). Perhaps they need to enforce a no noise house rule during certain hours.