Orly Bonder is my favourite base coat so far. When it dries it remains sort of wet and sticky, enhancing the adhesive properties of nail polish. The polish applies much more evenly than on glossy surfaces and chipping is relatively rare. There's nothing more I need.
EDIT: Bonder does not prevent staining nails. I've been using it continuously for over a month and my nails are yellow as hell. This doesn't bother me much cause I paint them anyway, but I thought you might be interested to know.
Disclaimer: I bought the product myself for my personal use and I am not affiliated with any company. I am not paid to do this review and everything I said here is my genuine opinion.