The apartment was beautiful and looked better than on the photos. Very clean and with everything one could need from numerous bath towels to storage for clothes and tips and maps of Girona. We really enjoyed our stay and had a blast exploring the city. The stairs weren't really an issue but I wouldn't recommend for people with low mobility and very tall people as my boyfriend who's 6'4 did hit his head a couple of times going up and down the stairs! Another note, it didn't bother us because we are heavy sleepers but the bedroom windows open onto the street which can get a bit loud when people are coming back from the pub/restaurant late at night.
We will definitely stay there again though next time we visit Girona as it is centrally located and surrounded by great restaurants and shops!