I got mine in the mail yesterday, enjoyed it quite a bit. My Rayquaza was in perfect shape, thankfully. It's not really the BEST of Ultra Premium Collections (Generations and SL take the cake for that I think, just by a little bit), but it's a good step in the right direction for these big yearly mega boxes.
What it does right:
-15 Packs is a much better amount than just ten.
-A good amount of promos, and a good selection of them (compared to the DRM one which had...two rainbows. Yay?)
-The mat is great, they always have been and they continue to be great.
-The Rayquaza itself, when not broken, is beautiful. It's actually why I bought the thing, lol.
-This is more of a comment on Hidden Fates itself, but the pull rates give enough stuff to feel like what you're opening is rewarding enough. (I went 9/15 on mine in terms of Ultra Rares or better, plus two holos and two foil energy). It's not like DRM where all I got in mine was...One Kingdra-GX. Lovely.
-They did the plungers for the promos. Very nice that the cards are coming out mint, that's very important when it's that expensive.
What it does wrong:
-It's not packaged well, which is why the Rayquaza has been breaking. They really need to improve their methods on packing these if they're going to come out with these big honkin' statues. I hope they do, like I said the Rayquaza is fantastic when not broken, but this shouldn't be an issue.
-The price tag doesn't really justify the content as much as it should. This would be good for $80, maybe 90 even.
Overall, I did enjoy it. I'm happy with my purchase and I think it's a nice step in the right direction, but they could easily improve this. Go back to the old giant boxes that they used to do that you could reuse (I used them for bulk), and add the old stretched out ETBs (and please make them fit toploaders again...) and dividers, and you'd perfectly have a $100 product.