I strongly reccomend flat of Marcos. We spent there almost week visiting Barcelona. Flat is situating in Gracia, in the plenty new house's first floor. Nice area in neighborhood to explore, lot of coffees, shops, but main door is from small street with limited traffic, this is why is there rather quiet. But there is no need to open the windows, because there is working air-contition. By and large all devices in the house are new, flat looks like it was just refreshed, we had energetic mornings through coffee machine with capsules (10 items, what can be not enough for extreme coffee-lovers ;) But Marcos is very very good host - he welcomed us on time, next day called asking everything is OK, he came in 15 minutes when I asked him about a little problem with ofen, and finally - he printed for us board-passes, which we couldn't print before and brought us. So this is very nice, cheerful, helpful and communicative man and he has very good taste to his home decoration. Staying there was a real pleasure for us and I will recommend him to all I know, that is planning a trip to Barcelona.