We stayed here for 30 days and loved it. The location is superb, just two minutes walk down a quiet old street to the subway/Metro stop. From there you can zip all over the city. There is a great supermarket with everything you might need at good prices right beside the subway. You can tour all day and drop in to pick up a few groceries on the way home.
Or, you can just walk along the main street for about five minutes and visit all the 'mansana de la discòrdia' architectural/interior design hot spots featuring Montaner, Cadafalch and Gaudi. Or another five minute walk to Casa Mila. Or you can walk the other way to Sagrada Familia in about 15 minutes. The apartment is on a busy street but this unit is at the back and very quiet. Just a few steps off the main street and you are in all sorts of atmospheric side streets with cozy bars and cafes and all sorts of fruit and vegetable stores. Life is easy here.
The apartment has a sunny terrace off the bedroom/living areas, and we often enjoyed eating lunch there even in October and early November.
The host and her husband are fine people who occupy the apartment right next door to this apartment. So when questions arise they are there almost instantly to help. At the same time they respect your privacy.
As we have a celiac person in the family gluten-free is always a concern. If you are celiac you will love Barcelona. The Spanish are far ahead of North America in placing gluten-free notices on products, especially at that grocery store near the subway. It is called Mercadona. And there are outstanding gluten-free exclusive cafes and pastry shops within easy walking distance of this apartment.
Another point of interest if you are into fitness. There is an outstanding fitness centre called Accura Bruc just a quiet five minute walk from the apartment. It charged us 75 euros for a month long membership. We felt that was a bargain for what we got: great classes, fine equipment and outstanding personal trainers. The gym seemed to attract both heavy duty exercisers and doing-their-best seniors. Very friendly.
We will be back in Barcelona soon and would always stay with Ana. We cannot recommend it more highly.