Apartment: Beautiful and extremely modern in the bathroom/kitchen areas yet charming with the brick walls and wooden beams supporting the ceiling. The bed is comfortable, and the patio outside has full sun during most of the day so you can use it even in the winter. The grill is a huge plus too. Just keep in mind the walls are extremely thin so you do have to take care to be very quiet so as not to disturb neighbors.
Location: Right off Ramblas, so it's a 15-20 minute walk to most of the main attractions in Raval, Gothic Quarter or Born. There's a metro a few minutes away that can take you to the other places that are too far. The apartment is high up enough that you don't hear street noise.
I was here for 6 weeks and overall this is one of the nicest Airbnbs I've had the opportunity of staying in. Adele is a great host who will welcome you with open arms and be very responsive to any inquiries you may have during your time here.