It's been almost about a year since I bought my PS1 and I thought I'd share a review on it. My usage was medium-heavy. I wore it for weeks at a time and I wasn't extremely careful with it (not putting it on the floor, those kind of things).
I am disappointed with how it's held up over the past year. The leather has stretched out a bit too much and is now curly. The hardware is chipped and misaligned. The inside of the bag's lining is ripped. I know this happened shortly after I got the bag (I think I posted the concern in this thread earlier). I think in general the bag is a gorgeous bag, but the leather needs to be more stiff to hold the boxy shape. Since I've had the bag for so long, I doubt Proenza Schouler would do anything about it, but the price for this bag is a little overwhelming when some cheaper bags would hold up a lot better than this after a year. I personally don't mind the chipping on the hardware, but the misalignment, saggy leather, and ripped lining are what make me hesitant to buy any other PS1 for a while.
Overall - I do not think the price was worth it. I feel like the authentic would last just as long as a knock off bag.
Anyways, here are some photos so you can see what I'm talking about:
Edit: I don't know if this would be worth sending over the Proenza Schouler, but I wish there was something I could do about the sagginess and the ripped lining