I don't use it regularly but I often get a lot of samples, so I use them whenever I can. I have VERY dry skin and I find their oils and moisturizers completely ineffective for that. However, I will say that they have not bothered my extremely sensitive skin AT ALL!! I also used their makeup primer one day and it felt so weird that I had to take it off after a few hours.
Their products seem okay if you have normal skin, but I'm not sure they are worth the money. I seem to have gotten better performance from some cheaper drugstore brands.