Nice apartment equipped with everything you need. The location is great: near Sagrada and the metro, but not too busy/not noisy. We stayed here with 5 people and the apartment offered enough room for everyone to do their own thing. If you have children, it is very nice that there is a children's playroom.
Isabel is a great host. Upon arrival there is something to drink, and she gave us some useful tips about the city.
Suggestions: the apartment offers room for 5 people, so it would be handy to also have 5 chairs at the dining table. Furthermore, one of our rooms had no curtain, so we had to cover the window with sheets. Also, one of the beds was really noisy and had a weak mattress.