So far, I only use the microdermabrasion kit (great!!!) and have tried the daily cleanser (don't like it - it leaves a film on my face and doesn't remove all my makeup). I got a sample of the night recovery moisturizing treatment, but I don't care for it. I have oily skin, and this feels like I'm rubbing vaseline over my face. The little sample is big enough for me to have used it 3 times w/ enough for at least one more.
I've got a few samples of other things I'm gonna try, too, from both the Regenrist and Total Effects line. If you go to Olay.com, you can sign up for all kinds of samples. They take awhile to get, and I never have received any of the coupons, just the samples.