The apt is cozy and spacious, and tucked into a small side street about a 2min walk from the metro, which takes you to the city center in about 12-15 min. Alternatively, you can take a cab to the La Rambla area for 10-12 euro. Definitely spacious enough for 3-4 people.
Ludo is an excellent communicator and made checking-in very easy. We had a small problem that was out of his control (he had a new housekeeper that forgot a few things) and he was able to resolve the issues for ur right away.