Highly recommend Oscar's Attic. The location is very close to the Joanic metro station, so exploring the wider Barcelona area is easy, especially with a €10.20 T10 ticket that gives you 10 metro/bus journeys which can be shared between more than 1 person. The blue route of the blue Touristic buses also have a stop in Garcia, just down the road from Joanic, which saves you a return metro journey if you plan it right. There are a couple of small but good supermarkets very close by as well as various bakeries and lots of places to eat...including an amazing vegan cafe/restaurant which does amazing vegan pizzas. The Attic itself is a great venue, the terrace gets the sun all day and the whole Attic is bright and airy, with comfortable seating in the living area and a firm, comfy mattress on the bed. The kitchen is well equipped with a fridge, hob, microwave and even a nespresso machine too (which we loved as we have one at home). Could have done with a vegetable peeler and as there was no tea-towel/drying up cloth we picked one up for a euro in the local 'sells everything' store down the road. We stayed 8 nights in the middle of June and would very happily stay here again if we're ever back in Barcelona.