Casa Cosi was absolutely lovely! The space is beautiful and you are within walking distance of las ramblas and several modes of public transport. The only problems we had was firstly the dishwasher wasn’t working. Our host said some men would be in to fix it but they couldn’t fix it so we had to hand wash all our dishes, not the end of the world! However, the host didn’t show us how to use the air conditioning units, and the room with the balcony had a unit that didn’t really do anything, despite being turned on all the time which was rather annoying when it was so hot. But overall we very much enjoyed our stay. Thanks!