Paulo's place is in a really cool part of Lisbon, we really liked the nightlife and the breakfast places there. We didn't eat in the apartment so I can't really comment on the facilities too much, but they had a teapot, which always makes for a happy Brit! Our bed was quite hard and with the windows open (due to heat) the street is quite noisy all night. The bathroom is clean and fine, although no shower head holder, which is always awkward. The wifi worked fine.
The stairs up are very steep, and in fact that area of Lisbon is very hilly, might be tricky with a buggy. My partner is on crutches at the moment and he is certainly fit after this trip!
All in all, a good enough place to stay.