My interview experience in Madrid couldn't be better. I arrived outside and on account of me having crutches, I skipped the outside queue and went directly to the check-in desk where they took my passport briefly and gave it back with two labels and a ticket with a number. Once on the waiting area, I had to wait for about 35 minutes before I was called into a window.
The very nice lady spoke Spanish and asked for my passport, medical examination and envelope with the X-RAY. She proceeded to take a look at the medical examination and stapled it to my file. She then told me to wait to be called for the interview.
I waited for around 45 minutes and I was called to a different window with a different lady. She was also very nice. She asked me why I was in crutches and was happy to hear that I didn't have much longer. She asked me to swear that everything I was going to say was true and started the interview.