Our main disappointment was that the single bedroom (as others have noted) is very noisy- lift noises, diy noises, people coming and going early in the morning. It was so bad after a couple of nights our daughter opted to sleep on the ramshackle broken- pull out sofabed-in the lounge, which was not comfy but at least quiet!
However, the apartment overall is good. There is a taxi rank a minute or two away, making transport easy- and we found cabs very reasonably priced in Barcelona. The apartment is spacious, air conditioning excellent, view from the balcony pleasant. However it is a little basic- no frills. There’s no cooker either, so don’t make our mistake and buy frozen pizza for a night in! Very interesting pizza that’s been microwaved and fried! 🤣