We had a great time at Clickandflat's place. Our Family of 5 had plenty of room and the place was beautifully decorated and well equipped.
Location is great, within walking distance to Paseo de Gracia (5mins) and Plaza Catalunya and Las Ramblas (20 mins). Kitchen is clean and well equipped with plates, glasses and utensiles, but you have to bring your own condiments as there were none. We did not prepared meals in our stay, so it was not and issue for us. Nesspresso coffee machine was great. Bathroom was big, clean and modern and the place was quiet at night.
Overall highly recommend for a centrally located stay in Barcelona.