It cuts the neck if you wear it crosswise, very dangerous otherwise., and the zipper doesn't lock in the "hidden" side pocket. I think it's too expensive for what it is.
Update: I contacted Polo and they sent me the protective cover to prevent the strap from cutting, which was missing from the black model I purchased. It needs a tailor to put it on, it's a delicate job, it helps a lot when it stays in place, but you have to constantly fix it. Durable for now. Unfortunately, without this little cushion, you can't use it.