We stayed in Tiago's Flat in middle October/ 2013. The flat is well set for guest and perfectly located in Bairro Alto (at the top of the hill.... to not forget with luggages.... take the elevator from Praça Restauradores).
The street is lovely and 200% Portuguese, it was a bit noisy but expected with the restaurants and bars. The bedroom is not on the street side so we could sleep well. The flat was generally clean and ready for us. We missed Tiago because we had a late check-in but the communication with him was perfect.
We would recommand this location for young people that want to enioy Bairro Alto and Lisboa in general!