We enjoyed staying at Davids apartment, which is very well located in the Bairro Alto. In only 2 minutes walk you are at a nice pubic spot, where you have a great view over the city, cheap drinks and life music by street musicians. Also, the Metro station Baixa Chiado is within walking distance (5-10 min).
Because of the great location it's quite loud as there is a street right in front of the door, where people are walking and talking and also some cars drive along. For us it was not a problem though, but people who are sensitive about noise could have a sleepless night.
The apartment itself offers everything you need - bathroom, bed, kitchen, and David was so nice to change our towels after a few days! All in all David was very helpful and there for questions and recommendations. Thanks a lot!
For us everything was perfect and we'll take the apartment again when we visit Lisbon the next time!