Oh and to contribute to this thread: I had a very good time at Collector‘s Square. Had an appointment at 11 and it was quite busy but the expert I was paired with was extremely nice, helpful and knowledgable. He showed me everything I was interested in and made a few suggestions too. One of them is my new to me B35. I first only bought a nice dark grey
Fendi Peekaboo because I wanted to think about the B (and a nice exotic mini peekaboo) he said I should just walk around, gave me suggestions where to go (e.g. Bon Marché, the Sevres H Store etc) and held the paid for
Fendi for me so I was free to shop

when I returned I was again paired with him and he had even held the two bags i was interested in for me. Which meant I paid for them and was out the door in 10min (I had to go to the airport so was very relieved it went so quickly)…
all in all a perfect experience for me, so I highly recommend collectors square to everyone who’s going o Paris (I can’t, however, recommend Catherine B tbh)