Montserrat is a wonderful host. I felt more like her flatmate rather than a lodger. She was very friendly and accommodating, from staying late to let me in after my flight had been delayed, to making me a lovely coffee, offering her food and letting my friend stay for a couple of days despite of a late notice.
The room itself is big, bright and the bed very comfy. Location is great too, still very central yet more authentic and quieter than the touristy parts of the city. Loads of little cafés, bars and restaurants (including healthy and veggie that I enjoy) nearby.
I hope to be in Barcelona again soon and stay with Monsterrat again.