The location is great, very close to a train station which is the best way to go to Lisbon by public transportation.
The big issue is the intense noise from the 4 or 5 restaurants located on the ground floor. They stay opened until 2 am and it was impossible to sleep until 2:30 from Thursday to Saturday. From Sunday to Wednesday it was ok because there were not too much teenagers drinking until late.
The studio has two single beds putted together as a queen size bed. They are very comfortable but for couples is not the best option.