I agree with this, but just wanted to emphasize that this is only in the MFF Zoes.
The boutique Zoes have wonderfully thick leather. My brown (color was "chocolate"?) has leather that later seemed to be renamed as their "pinnacle leather". Even my crinkle-patent boutique Zoes have wonderfully thick leather. These, of course, are the Zoes with the buckles on the sides.
While the Zoes were still in the boutiques, they started making MFF Zoes (with F at the beginning of the style number) that were *identical* to the boutique Zoes, and had just as nice of leather. I once stood in an outlet, comparing a boutique delete Zoe and it's MFF version, and they were identical. Same thick, aromatic leather. Same hardware. Same everything, except for the F after-the-dash on the creed.
Once the Zoes were no longer offered in boutique lines, then that's when they re-did a new, different style of MFF Zoe. It lost the buckles on the sides. It gained a crossbody strap. And I think the shoulder strap was no longer detachable on one side (iirc). *That* is when the leather on those "new style" MFF Zoes really went south.
But the boutique Zoes (and the *first* version of identical MFF Zoes) are wonderful leather. I have multiple medium, multiple pochette size, and I'm actually in the market for another one or two. Daughter even requested one (had to get it in excellent condition from ebay) just because we liked the leather so much, and she was after that particular color.
Anyway, I just wanted to emphasize the difference in those Zoes. Original Zoes ... amazing. Later-style MFF Zoes ... that's where it tanked.
..... editing to add .... And the leather on the new Shadow bags is pretty darn nice too. I have one winging it's way to me at the moment, and I shall be fondling it muchly once it arrives.