Just got the Little Ukita in dirty martini. I didn't see the large size, but I think it would be too big, too. The Little is perfect. It's a shade bigger than my Turnlock Natasha, which I carry a lot because it's a nice medium sized bag. I expect I'll carry this one more, though, because it fits more without feeling any bigger, and the color is AMAZING. It's the neutral color I'd been trying to find for months.
The only thing for me is that it has a short handle and a long strap. The long strap can be removed, so you can just use the short handle and carry it like a tote. But I tend to like to wear bags on the shoulder or cross-body (and this one will cross-body). Two-handle bags sometimes bug me because the short handle gets in the way. This bag's short handle is pretty short, so it doesn't bother me as much. But I'm going to walk around with it a bit at home to see if I can get used to it. I love everything else about it.