This flat is very comfortable and modern in comparison with many other flats in barcelona. We have been there for three month and we missed nothing. Everything you need is there, it‘s clean and well organized. Nu answered always very fast and solved every problem I had very quick. The wifi is very good and there is an air conditioning system, a tiny balcony and an own washing machine. We also had a guest for two nights sleeping on the sofa which is a nice possibility. The flat is located very well: 10mins walking to la rambla de poblenou, the beach or to the parc de la ciutadella (and many other things). Two metro lines are very close, also some good restaurants, shops and supermarkets.
All in all it was a very good time there!