As with most Benefit products I have used, I really like Boi-ing Concealer, but I am not fully sold. It goes on easily, stays put for a medium amount of time and is made of high quality ingredients.
After lots of use, I can confirm that this concealer is really excellent. However, it frustrates me endlessly that Mac have designed the packaging. If this concealer had a doe foot applicator that let you distribute a small amount of product it would be absolutely perfect.