Thanks everyone! I was almost going to get it one size larger and in blue or rouge (red). The SA kept saying blue and rouge are this season's latest colors so I'll less likely see anyone carrying the same bag/same color on the streets. She also promoted large size to me as I comment that it's hard to take things in and out of the zipper. Indeed large is a better size in terms of space and maneuverability of things.
Black patent was calling out to me more, though the new blue and rouge lambskin are lovely as well! Took medium because it's more classic looking.