Our experience at Pier's home was very positive. He came to pick us up near Palau de Musica and walked home with us. He also explained a bit about himself and gave us some tips on where to go in Barcelona.
The house is very well located (within walking distance to metro, bus, Placa Catalunya, Palau de Musica Catalana, among others). There are small shops open until late nearby, and also a lovely café (La Masala) with a nice simple breakfast.
The house is of comfortable size and was very clean, which was very nice for us.
It was, however, a bit noisy at night. and if there happens to be any construction nearby, it will wake you up quite early in the morning.
Other than that, we had a very pleasant stay and would probably come back to stay with Pier when visiting Barcelona again.
Thanks!
Diana & Silvia