The apartment is very nice as in the pictures. The location is perfect, just in the center of Bairro Alto, a few steps from Elevador da Bica (you can actually see it from the balcony).
The only downside is the noise: we stayed Friday and Saturday night and we could hear voices from the bars closeby, which I think is difficult to avoid if you stay in the middle of Bairro Alto. On Sunday night it was much better.
Apart from the noise, we had a very pleasant stay. I would definitely recommend this apartment.