I generally only use a primer under my foundation if I'm going on a night out and want my make up to last all night. I've used Smashbox primer for years but acquired this one from my Mam to try out.
The packaging - like most bareMinerals stuff - is pretty minimalistic and functional rather than pretty. The pump dispenser is easy to use and dispenses product evenly, a little goes a long way. Rather than it being clear like my Smashbox primer it's a light shimmery pink, almost like a highlighter. There is definitely a brightening effect to it but in daylight it is quite shimmery/glittery so this is more of a night time product for me, which is fine as that's the only time I wear it!
I do think that this helps keep my foundation in place on a night out so I will be continuing to use this for my night look. I've also got a bareMinerals eyelid primer but as I don't really wear eyeshadow and I've got my lash extensions on I haven't tried this out yet.