We knew the location was a bit far from the center, but it was just fine for us. Our family of five women are walkers and it took us about 35min to reach the Sagrada Familia through a nice neighborhood. The grocery store was just downstairs and highly convenient to grab food or amenities. It was a very small apartment for 5 (although decent sized bathroom) but as we are a close family, it was fine. Avoid taking long hot showers with a big group or it will run out. Also do your research on Barcelona before arriving; there's not really any guidance that's given on where to eat or top sites to see, so do your homework. Although a friend of Mary's checked us in, she was immediately available when we needed anything. We couldn't find soap and a sponge in the kitchen, and she made sure to get it to us in hours. There was also a mix-up with the directions (it's on Llobet i Call-Llosera with no apt #), but the Apple Maps showed a different address from the Google map. After 15 min of waiting in the rain, we were eventually found. Keep in mind it takes only 30min by cab to get to the apt. We had picked a check-in time one hour after our flight landed and still ended up getting to the apt early. Also, the nearest subway stop seems to be Maragall - it's about a 10min walk from the apt. The 55 bus is super convenient to get to Park Guell or Montjuic, although we did not use it.