We have communicated you before you booking to check in 5 people that night check in will have a supplement of 30 euros this day. I had to wait for you over 3 hours of the time indicated by you. I am always available via Airbnb and email.
In the apartment you have airconditioning powerful and portable fans in every room.
It is the center of town, there is always traffic cars, for not to hear road noise you have to close the windows . There are many neighborhoods outside the center of Barcelona where there is less traffic but much farther from the tourist sites.
Have a nice day.
In over 200 positive feedbacks we have nobody talks about cockroaches! It may be that you have brought the roaches to the apartment? We had to call a special company (disinfection) after your check out.