depending on your height and what you intend to use it for...I am 5 feet 6 and use oversized as a sleek and elegant work tote. I carry all my personal stuff + books/papers for work, if I have larger load to carry, I use smaller bag for my personal stuff. Muse in OS is i my opinion the best looking in terms of design, ratios height/width/strapdrop. I do not like Muse as a shoulder bag (just like chyc cabas, in my opinion, this is a classy hand held bag, in any size looks quite awkward on a shoulder). | love my silhouette when I see myself in a window of a shop with oversize muse in hand....and love all those photos of Jessica Alba, Kate Moss etc etc who are carrying that size