I have get my Iphone 7 Plus unlocked in 9 days and, so far, it is working perfectly.
However, the price offered to the customer for the service is utterly misleading, as you have to paid first an amount that is shown as the total price for unlocking the phone. But once you have paid for it and once you receive the notification that you have successfully unlocked the phone, you discover that you have only paid for a fraction of it, and that you need to pay like three or four times more for the service to be completed. I feel disappointed with this bit, and I think you should change this marketing gimmick because you are simply turning the good and effective service you are offering into an outrageous deceit.