We would highly recommend this apartment to others. We did not have the opportunity to meet Diogo and Joana because they were out of the country traveling. Even so, they were very prompt in their communication to us that their friend Ana would meet & greet us.
The place was immaculate. It was convenient to the subway and taxi service if you need it. We walked most often. Having the balcony and view was a definite plus. The doormen were even very helpful in our stay.
We would not hesitate to stay there again and hope that we do have the chance to return to the wonderful city of Lisbon.