We stayed for 4 nights with two adults and two teenagers.
Location:
Location in Vila de Gracia - a family oriented neighbourhood which is made up mostly of locals - is good with a supermarket and traditional food market steps from the apartment . You are also a two minute walk to the Metro stop to access trains and bus routes throughout the city. It is quite far from some of the major tourist areas (Gothic region, Barconaleta Beach, Montjuic) which are spread out so expect to walk 60-90 minutes to see many of them. We ended up getting a 48 hour hop on/off bus tour with Barcelona City Tours which was a great way to see/learn about all points of interests especially if you only have 4 days like we did.
The Apartment
The apartment is nicely decorated with some beautiful accents like exposed brick walls and ceilings. It also has a nice bathroom and new kitchen with induction stove stop which took some time to learn how to work but was great once we did. Beds are very comfortable.
It is a bit smaller than it appears in the photos - for 4 people we found the kitchen and living room a bit too tight for us. Some kitchen utensils that would have been nice to have - cheese grater, spatula - perhaps something to add for future visitors.
The electrical power in the unit went out on us at least 10 times likely because you cannot run more than one major appliance at time - i.e. oven/dishwasher/washing machine. Was fairly easy to reset the breakers though but it may be something for the landlord to address in the future.
Our unit was on a floor one level above the back alley and there were quite a few locals who hung out into the early hours of the morning making noise. My sense is they were fairly harmless but we were not comfortable letting our kids go out when they were there.
Host
Leading up to our trip communication with Yaiza was quite good however, he/she was not as responsive once we had checked in. Two separate messages were not responded to - specifically what to do with the garbage and recycling and the Wifi outage on our final day which was a real inconvenience as we were trying to arrange travel changes. A bit old school but in apartment guidebook to answer frequently asked questions like this would have been helpful.
Barcelona is an amazing city and we really enjoyed it. Next time we might look to stay a bit closer to the water and major points of interest to make the city a bit more accessible in the evenings.