Check in was quick and easy. Billing, hotel info, everything was clearly listed on paper. It was very easy to get help from front desk if necessary. Room was spacious and clean. My room was on third floor. There were multiple windows, but no view at all. From what I see, mainly for ventilation purpose, also source of natural light. Location is excellent. Walking distance to many attractions, very close to subway station. Numerous dinning options nearby. For cruise passengers, it was very easy walk to cruise bus station and then to desired cruise terminal.
Depends on how many or how bulky are your luggaes. From airport to hotel, my family used WelcomePickups and reached hotel directly, for a better beginning trip experience.
Overall, for 4 nights stay, my whole family were very satisfied with Hotel Gaudi. Definitely on the top of the list to stay if we go to Barcelona again.