Personally, I find the interface of the shoe is not too narrow, my feet wider it is ideally located, neither too wide nor too narrow. Although not heavily padded, it is quite comfortable and feels comfortable.
I am sensitive to the back and have often footwear vacancies because I have a pretty flat heel ankle have high well, but the Puma no problems.
In addition, I like the retro look totally.
Quality and workmanship are great, price was small when I slammed - perfetto!
All in all, nothing to complain about :)