I used to suffer from oily skin and as a typical teenager quite a few spots. I didn't have bad acne, so I'm not sure how effective the Clinique 3 step kit would be for that. However for the average spotty teen this stuff is great!
Step one is a cleanser which you can get either a pump which produces quite a bubbly mixture, or a hard soap. Personally I preferred the hard soap as it always left my face feeling cleaner, however you'll need to use an eye makeup remover first for it to be fully effective. The cleanser is good and the hard soap lasts a very long time, a couple of months easily. I found the pump doesn't last that long, so I don't think it justifies the price as much.
Step two is a toner. For the first few days this stung slightly to use which I was warned about, but after that it was perfectly comfortable to use, and it worked well, leaving my skin clean and fresh.
Step three is the moisturiser, which I really liked because it wasn't too thick, making it easy to apply in small amounts and hence avoid that greasy feeling when you've used too much moisturiser.
In all, I think the 3 step solution is very good. At first you may not notice a difference or your skin may even get worse, but this should be expected. After a few weeks you should begin to notice a visible and physical improvement in your skin. After getting this set I ended up getting compliments about my skin throughout my school years.
I no longer use this solution set as I have moved on to a less harsh routine, which I prefer and find works well for me. However I cannot say that this solution would have worked so well during those spotty years, and so the anti blemish solutions may be your best bet!