Well, this has been a long morning. I managed to snag a copy from Sainsburys (there was dozens) and excitedly got home to get it set up. You have to download Snapchat to view the footage and that in itself took me half an hour as I didn't have a clue how to scan a code onto Snapchat lol. Ultimately, it's a decent little experience considering it's cardboard, it works like a proper VR experience albeit a bit grainy and archaic.
Unfortunately there doesn't seem to be anything else in the way of exclusives.
It says "2 mind blowing experiences" but as far as I know it's just "In Utero" :/
Think twice if you're gonna buy multiple copies! It's cool but I don't know how much collectors value it will have.