Manuel was a very pleasant host! He was very spontaneous, flexible, and just very gentle to talk to when checking in. The apartment was very nice and satisfying. Only thing is that as apparently in all Iberian apartments there is no heating except fan heaters, so it might get a bit cold during winter.
There may be some spots that are even more central in Lisbon, but the location is still ok to reach the metro and to walk to the tourist attractions. And the area is truly residential and very calm, but still not suburbian.