Uwe's place is wonderful. As others have mentioned, it's considerably larger than it appears in photos, is clean, well looked after, with a spacious kitchen, great views out the living room window...just an excellent place to stay. I spent a month and was working much of the time, so can report that the internet is reliable and fast.
Neighborhood is far enough from the center that you feel free of the tourist overload in Baixa and Bairro Alto, but close enough to walk to most points of interest in half an hour. There's an excellent bread bakery nearby (Micro Padaria) and a Pingo Doce at Santa Apolonia and another (larger) 15 minutes away in Graca.
Can't recommend the apartment highly enough and was sad to leave. Uwe's as involved as you'd like him to be and made check-in and check-out very easy. One of the best values (and experiences) I've had with Airbnb.