Staying at Daniel's place was a really nice experience with a great prize-value-ratio. Daniel and his girlfiend were very hospitable.
Apartment: everything was clean, our room super cozy and beautifully decorated. The bathroom had a bit of mold on the ceiling and was bit cold without heating in February (which seems to be normal in Lisbon), but it was still okay.
Breakfast: we had granola with fresh fruit and tea, which we love, so that was great for us.
Location: everything is reachable within 20-30 minutes by foot. The place is on a hill (lisbon has many hills in general), so if u have a lot of luggage, i would take an uber/ taxi instead of a bus (less than 10 Euros).