Camera. Forgot about the bigger camera opening required. However, I used a Dremel tool and it works fine now. I'd still like to get the iPhone 7 case, if Huskk makes one, but for now, I'm fine with it.
For those who ordered an iPhone 7 Plus, don't also order a 6 Plus case. It won't fit properly without some major modification!
I bought the leather one from apple for my 7 Plus, and regret it already
I looks good, but has no grip, if for instance, you rest it on an armchair.
My 6 Plus has a silicon case and it is superior in my opinion.