I have stayed with Cristina for six months (I actually have one more to go!) and it's been such a welcoming experience. The location couldn't be better; about 5 to 10 mins the beach, 2 mins from a metro station, in a fairly quiet but populated area (poblenou rambla is a must see). I have been very lucky in my stay to have such a kind host. Cristina has been very hospitable and helpful whilst I've stayed here. The pets are very well behaved (and adorable), and the room is perfect, decent size room, decent size bed, bright and airy. If there was anywhere I'd recommend in BCN, it's here.
Here's to one more month! :D