We got met at the apartment at 11pm on a Sunday when our flight got in which was good of them to do (charged 30€ extra, but it was actually supposed to be 40-50€ as specified in their late arrival terms and conditions). There were 4 sets of keys, so plenty for the whole group. We were 8 girls (20-21 years old) looking for a fun post-university short trip and the flat was perfect for us. There were 10 (real) bed spaces plus an extra 2 spaces on the sofa bed if needed (hence the total of 12 advertised beds). With 6 single beds and 2 double beds it meant that we could spread out and each have our own bed which was lovely. The apartment was just as the photos look, very clean and modern and plenty of space. There were two identical bathrooms, both with strong showers, sinks and toilets. There were about 5 mini supermarkets all within 30 seconds walking distance (most of which were 24 hours) and bigger markets/shops just a 5 minute walk away.

We used the airport shuttle bus which stops in the Catalonia Square literally just down the road (5 min walk) from the flat and it takes around 30 minutes for around 6€. You can also pick up the city tour bus from that square. Las Ramblas is less than a 10 minute walk as well. We flagged down taxis just outside the apartment everyday and night to go to the beach (where the popular clubs also are) and that cost around 7-8€ for one 4-person taxi per trip. Barcelona is quite spread out, so while the apartment was in a fantastic location for all central sites and shopping, it wasn't far in a taxi to the places (such as the beach) that were a little further. The local taxi drivers didn't tend to rip you off either which was nice.

A final thing to note is that there is no air conditioning. We went in May and so the nights were quite cool and we slept very comfortably. However, I'm not sure how hot the nights can get if you go in July/August. There are heaters in all rooms for Winter trips, however.