I stayed in the single room 411, 1st floor in front of the elevedor and stairway: I heard everything going on in the lobby (checks in/out, bagages' noice, people back from restaurants, etc.); the room has a thin window so I enjoyed the traffic except from 1 to 4am. Though the place is nice, it's noisy.
Plus: on the terrace the ash trays are nevers cleaned, the tables are coffee printed and their is no video surveillance (all perimetrical doors open 24/7) and not always someone at the desk around 4 to 6am (when I got out for a smoke), except the white and brown cat.
The only good points the hotel: quite charming and a good base for visiting Algarve, choosing going East or Ouest depending on the mood.