Yes, I agree with you both! I was finally able to see the bag and chose the smaller (mostly for the slightly shorter chain length, the lower price point, and the fact that it fit SO much). But, I think I may want to add a medium as well in the future! The leather is soft and gorgeous, but also feels sturdy and not delicate like lamb. The bag isn't heavy and the top chain handle is so clever and makes the bag so easy to use. I also love the large back pocket that can be used for your cell phone (unlike the Mona Lisa pocket on the classics). I don't think a bag shaper would work in the small (it would eat up too much space) but def in the larger sizes. I also saw the beige tweed in the large - really gorgeous but too delicate for my lifestyle.
Definitely give it a chance! While it won't be for everyone (nothing is!) this one needs to be seen irl before you decide! (My SA told me that the prices for the 19 will start going up - even though it started high! - as they did with the Gabrielle once it was launched.)