All the SA at Vancouver store are great! Customer service and equal treatment is trained by their Store Director. It's also nice to stop at the airport store as you may find some unexpected goodies. It's a franchise store owned by global duty free so the inventory may be different. Last time I stopped by the airport store, although a small shop, they had charms that the Vancouver store did not have so may be worth a visit if you have time.
@hannahsophia: for the majority of the US departure flights, they have a US terminal at YVR, which may give you access to Hermes store. I vaguely recall i was only able to stop by Hermes store for non-US international flight. You might want to check with YVR on it. Also, the hassel of Seattle bound flight may not be worth the trouble. Its only 3 hr drive from Vancouver and considering security clearance and having to be at the airport 2 hrs prior to departure, it may take longer via air. As for Hermes Vancouver SA's, I concur with the other TPFers. Hermes Vancouver staff are consumate professionals. Any of them would be great. Damian, Paul, Chris, Carolyn, and Sookae are long-term SA's. PM me if you have any questions.
Thank you both!! This has been very helpful!