The fit is perfect and the process was relatively easy and quick. I have no complaints about the product. My one complaint is the big, bulky, ugly retainer case it comes with. I would expect that had smaller, more sleek looking cases for the clear retainers. I know it's silly but I have to look at that retainer case on my counter every day and it is just plain ugly. Even functionally, it is far too big for this type of retainer. Again, the product is great and I will 100% be returning here for a...