I've used this and liked it, but won't be repurchasing. It seems to work just like any lip balm. I does moisturize my lips, but it does not seem to make the color last any longer than it would otherwise. I don't think it's worth the money.
I started using this about 5 years ago and now I cannot live without it, especially in the winter in Minnesota. It provides a wonderful base for whatever lipstick you are using. I find if I put it on and then wait about two minutes before adding lipstick, it works the best.