I just got this bag in the grained calf. When I talked to an SA, he did concede that the soft calf scratches easily, although is so soft! The grained seems really durable and I feel comfortable dabbing it with water if it stains (I wear a lot of sunscreen). I'm not sure if this is what you were asking, but I hope that it is helpful!
Generally I love the bag, although don't care so much stuff, as it's super light! I love the flap and how it secures with the overlying strap. It's really easy to get in and out but if I forget to close the flap, I still feel like my items are secure, and the bag feels both structured on the bottom but also easy. It has a back pocket that could fit an iphone, maybe? But I think it would be a bit snug and not secure, so I don't use it in this grained leather bag. There's a nice divider inside the bag to separate compartments, with a tiny flat pocket in the divider that I don't use. It's a soft suede, and I heard from others that it has torn on them, so I'm a bit cautious about how I place my keys inside. The only other thing that bothers me is that, because I am short, I have the strap adjusted to the shortest length, the securing mechanism for the end of the strap isn't super secure, so it sometimes ends up flopping around. I heard of some fixes of adding some DIY stitches through the holes, which I will probably end up doing at sometimes, as I don't think I'll be using it as a clutch anytime soon. Hope this is helpful too!