This is an excellent product, but I usually only use it as a top coat. Whenever i use a polish which proves to be problematic (i.e. chips easily), i put 3-Way Glaze over it and it helps the polish stay on a lot longer. It doesn't really do much as a base coat for me, I've tried using it like that with the same problematic polishes, but it didn't prolongate their wear. As a top coat, however, it has not let me down.
It's a great product. Dries relatively fast. I love having just one bottle that does everything. Polish is shiny and beautiful afterwards. The only downside is the price. You can probably find it cheaper elsewhere, but it's pretty steep for a bottle. Other than that, it's a staple!