Me and my boyfriend stayed at Umberta's for only one night - but we would definitely like to return. The room is nicely done and spacious, well-lit and extremely clean - it even smelt really nice! We were super comfortable in the room, and the area was very convenient too - it is only a couple of minutes' walk to the metro station and we felt totally safe walking around late at night.
Moreover, Umberta and her husband are really friendly. We were given a warm welcome by Luiz upon our arrival, and he was very helpful in suggesting a place to get my phone fixed. Umberta was there to say bye to us on our departure, when she kindly kept our luggage until the evening since check out time is in the morning.
Totally recommendable, and we hope to return ourselves :)