The apartment was almost the same as the photos listed, except for some of the decor. Once I reviewed the description in Spanish, it does state that there is an extra $2.50 fee/person/night because this is a company run apartment rental.
Location: the location was convenient for us (most attractions were approximately 1-3 miles away by foot), but towards the end of the trip, walking became a chore. The closest metro entrance was about 10 minutes away by foot.
It is also quite a noisy neighborhood, but I feel that all of Barcelona may be like this. If you are a light sleeper, then I highly suggest bringing ear plugs because it’s loud until about 1-2 AM and starts again around 7 AM. I felt safe in this neighborhood even when walking back at 1 AM. I was also walking alone during the morning and had no problems. Shops and eateries are right outside, which makes it super convenient.

Another thing worth mentioning is that the apartment is on the second floor. There is no elevator and the stairs are a bit narrow.
Note: Due to the size of the apartment, I would definitely not suggest any more than two people for this location. The apartment also has a limited amount of hot water as they utilize a hot water tank. It takes about 2 -4 hours for the water to boil again, so I’d advise not to take long showers - I learned this the hard way.
Communication with Joan was wonderful. He was very accommodating because our flight was cancelled and we came a day later. He answered promptly and was able to send someone out to meet us earlier so that we could start our day.