Antonio was very kind, we had no issues with check-in/out even though we arrived late in the evening. The place is in a great location, close to Lisbon's center and also the old town. The neighborhood could look strange at first, but was actually very safe, authentic and overall interesting. Note that the street is very lively and could get a bit loud if you tend to keep the windows open. Also, consider that if you are a big and tall, the small bathroom would be uncomfortable. We had a great time!