I generally have had horrible luck finding a primer I like and that works for me, but I am on my third tube of this. So that is amazing to me. I love this stuff. I see it isn't very popular, which is unfortunate. But for me, it's been great. I see others say it's like a moisturizer. Fair enough, I can see the comparison. But I do feel that it does a great job of smoothing and prepping the skin for foundation. My foundation looks much better when I wear this. Now I have to say, not EVERY foundation I own plays well with this, but I think that is true of any primer you buy. I don't think that any one primer will work with every foundation. But this does work with most of my foundations. (I have a lot of foundations, too many,) I don't think this does a whole lot for increasing the longevity of my foundation, so that is a negative. But I use the Hangover RX spray after my makeup is done, and that does increase my wear time a lot, so I'm ok with it. In the summer when I am oilier, I don't use a moisturizer under this; when the weather starts to turn cold and heating season starts, and I start to get drier, I do use a moisturizer underneath. I also love the packaging. The pump dispenser works great, and I don't have any product waste with it. It keeps the product fresh. I haven't had any trouble with the pump not getting all of the product out of the tube. Overall, I find this to be a great primer for me, and I am happy to have found it.