I always have exceptional experiences at FSH and Sevres in Paris. Truly the way one wants to feel while shopping.
However, my first experience in NYC at Madison was not so great. I simply wanted to have one of my CDC bracelets spa'd. The guy upstairs told me to go downstairs to the help desk or to the cashier and anyone could assist me.
Downstairs, there was nobody at the help desk, so I stood in line at the cashier's desk. The cashier (dismissive older female) was busy finishing a $13K transaction and made every effort NOT to make any eye contact with me or acknowledge me at all. It was annoying, but I understood that she was assisting someone else, so I walked around admiring a 40cm matte croc B (among other treasures) for another 15 minutes before returning to the line.
When she finally finished her transaction, she asked me if I was waiting for something or someone in a VERY nasty tone. She acted as if I had bothered her by waiting in line. I told her why I was there and she then barked out that I needed to be in the other line at the repair desk and stormed off into a back room.
At the repair desk there was a totally different vibe. The young lady working there was extremely polite and immediately helpful. I even met the SM and had my issue resolved within minutes. It was superb. I really don't know what was wrong with the cashier, but she was extremely dismissive and unprofessional. I actually felt sorry for her.