My husband and I stayed at Myriam's place with our 18 month old daughter for 5 nights. In the middle of the stay, I had a discussion with my husband about how we couldn't have picked a better location to stay- right out your door are amazing pastries, famous pintxos, beautiful nature and city walks and architecture, shopping, and the beach. The sound on the streets of Old Town at night is definitely noisy, and the apartment's noise canceling blinds don't completely drown it out, but even with a baby, we wouldn't have wanted to stay anywhere else. This location made doing everything so easy that the payoff of sound makes it worth it.
The apartment itself is clean and nicely furnished. Myriam was a very helpful host- meeting us at the parking garage, as we rented her private spot, then helping us with our stuff and giving us good directions and ideas of things to do. She also provided us with a crib and sheets for our daughter and a fun baby blanket for her to play with.