Be aware there are 96 stairs up to the apartment. But we were helped with our luggage and given great advice about the city from the friendly Ivan. All amenities you need, air con struggles to reach the bedroom but still comfortable enough.
Washing machine gave my clothes a brown stain.
If you want the hustle and bustle of la ramblas with lots of people, I highly recommend this place with its very central location.
If you are after the sights of Barcelona somewhere a little quieter (and with cheaper bars/restaurants) I would look elsewhere.