Vanessa was a good person and the room was so comfortable!
The address wasn't fully mentioned at first, but she told me later. The location was also good for sightseeing...casa milá is in walking distance and you can take metro easily to visit other spots.
The wifi was not available at first but she fixed it later.
Kitchen and bathroom are clean and easy to use, too.
She also gave me some information for looking around Barcelona! Thanks, Vanessa :)