I can't say i'm an expert but I am very knowledgable with authentication for Celine, Chanel, and Louis Vuitton... this is because they are my most favorite brands and I do help out some of the ladies in PurseForum when I have time and need a study break... :) I do know my way around Manhattan, NY because I lived there for 2 yrs and could definitely give you a few great "locals know" type of places to eat and/or drink... ^.^