We just got back from a great stay at trippingbarcelona's apartment for 3 nights. It was just the 2 of us but there is ample room in the apartment for probably 5. It was super clean and probably one of the most well equipped apartments I have stayed at. Should you feel inclined to cook, the kitchen was modern and had more than enough crockery, glasses, utensils and even a great coffee machine. I never got to meet the hosts but they were incredibly responsive and easy to deal with via airbnb messaging. They were very flexible with allowing us to drop our bags off early while their team was still preparing the apartment. A huge help! The location could not have been better. Literally a 2-3 minute walk off the Aerobus stop in Plaza Catalunya from the airport. Its also close to 2 metro stations and good central location to most neighbourhoods (like El Born, the Gothic Quarter...) and attractions. We slept well as the beds were memory foam and very comfortable and it was also very quiet the whole time we were there. The apartment looks as it does in the photos. We certainly appreciated the washer / dryer after our road trip around Croatia prior to arriving here. Would recommend a stay here.