I love MUFE, and this product was a pleasure to use, but it's too expensive to not be amazing. This was the first primer I ever purchased, but to make my makeup stay (and I mean really, really stay) I used Philosophy's The Present.
Pros: Smells amazing, feels amazing (like a light lotion rather than silicone) on the skin and moisturizes quite well. Comes in a hygienic pump bottle that lets you get at all the product inside.
Cons: Although makeup goes on better over the primer, it does no better at priming or extending wear than a moisturizing lotion. Expensive for a fancy moisturizing lotion!