I stayed with a party of 5 adults and a 2yo at Victor's apartment on Parral-lel Ave in July '16. It was perfect for our needs, clean, well equipped, great air-con, reliable wifi and quiet at night. Everything you could want is nearby and there is easy public transport to all the attractions & entertainment Barcelona has to offer. Flor was a pleasure to deal with, very friendly and accommodating, and prompt to reply to our enquiries.
My only concern was with the pricing of the apartment after we made an alteration to the duration of our stay prior to check-in. Although this was an error on our part, I'm not convinced it was handled in accordance to the "Moderate cancellation policy", and I felt that we were charged too much for our stay. Be aware that the advertised nightly rate on Airbnb bares no resemblance to the actual price during peak periods. This is explained by Victor in the "house rules" section. I suggest you read it before booking!. There are no blankets provided which is not a problem during summer, but could be a consideration for other times of the year.
Other than that, we thoroughly enjoyed our stay and the apartment is as advertised.