I stayed at Paulina's apartment with my mom and my sister for 3 days and we were very pleased. First and foremost, Paulina is an excellent host. She was flexible in terms of our arrival, was responsive throughout the weekend for questions and recommendations and went out of her way to help us when we needed it. The apartment is very clean and has everything you need. Definitely a great value for the price. The location is excellent. It is in the heart of a charming non-touristy neighborhood so you get a good feel for how the locals live but is also easy to the main sites. There are some fantastic Tapas bars and places to eat nearby. The apartment itself is cozy but quite comfortable. There are two separate bedrooms with good, comfortable beds and bedding which is really nice. The AC is excellent too which is a real plus in August. Regarding noise level, we did not have any issues. Although the apartment is a block away from a plaza where people gather and hang out late into the night it was very quiet in the apartment. One thing to note is that it is a two floor walk up but it didn't bother us much. Also, the shower is a bit small but these were minor things in an otherwise excellent experience with this apartment. I strongly recommend this place for anyone visiting Barcelona.