I had a mixed experience staying at Diogo & Pricilas apartment. Everything regarding the apartment, arrival etc. was great. It's situated in a really nice part of town with lots of good restaurants, and the bed, shower and everything else was really nice. However, there was a family with a little kid living upstairs that made SO much noise it made it impossible for me to sleep. First night I didn't sleep until 2.30 and second night way past midnight as well. I don't now if they are permanent residents or holiday apartments as well. If the latter, you will probably be fine and I would just have been unlucky. But I would definitely ask about that OR bring some really good earplugs!