I bought the classic Flap version of this color because I love classic flaps more but your 19 is also so gorgeous in this color

. I have the 19 in few other colors and in my experience, the only wear you’ll see in the long term is mostly slouchiness.
In my opinion, lambskin fares better on softer styles such as the 19 than it does on bags with hard corners such as CF or coco Handles. Those structured styles are more prone to corner wear and deep scratches. The softnesses of the 19 makes it more hard wearing if that makes sense. I also love the aged gold hardware against the green on the 19. So pretty.
In the end, you have to love it.That’s what matters. Keep it for now and try it with different outfits at home and if you still have reservations in a couple of days, maybe it’s not for you. Good luck