We (4 girls) stayed in Alberts appartment for three nights. It was very comfortable and enough space for 4 people and the terrace absolutely was the highlight. One more mirror in the appartment would be great (especially for girls ;)) We couldn't check in in the morning, but we had the option to leave our luggage there, so it was ok... The appartment is 5 min walking distance from Sagrada familia, which is perfect. If you want to be right in the nightlife you should maybe search for another flat but we found it great, because daytime you can walk long distances and for the nighttime the metro station is near the appartment... Enjoy your time in beautiful Barcelona in this modern flat :)