Pros
SF Headquarters is convenient to get to through mass-transit. Sometimes you get free samples of product, which is always fun. Having Sephora on your resume is a gain.
Cons
The whole atmosphere felt like a bad high school movie: sorority-clique staff, usually incompetent and attaining the job through connections rather than knowledge in the field. Promotions are based on favoritism rather than measured work achievement. There is no job security, which I saw at HQ when one girl was fired on the spot for nothing specific. Working hard, putting in late hours, and going above the call of duty is not recognized, even verbally. I saw many talented people, from full-time workers to unpaid interns, be verbally abused, overworked, disrespected, and quickly discarded, or run far away when they witnessed such events happen to others.