The apartment is just as it is advertised - a lovely space. We (three young-ish girls!) thoroughly enjoyed our stay. It is out of the centre but very easy to get to as main metro station a short walk away and taxi to la rambla is pretty cheap. I would advise anybody to download the Airbnb app as it is great for communication; Helmut and I were able to communicate very easily throughout our 4 day stay and was very helpful and understanding of an issue that we had! I would also recommend you use their airport service to pick you up. It's pretty easy to get back to the airport on public transport but easier to have someone show you the way there.
Thanks Helmut and thanks to your team of helpers too!