I have, I bought the pick your own travel pack from their own website. I have the following;
Liquid gold - excellent but hardcore definitely only use as directed.
Pore refining mask - does a great job. A little bit drying though
Liquid gold serum - a bit meh it stings and I don't see any results from it. I will finish but not repurchase. It also stinks and has a yukky texture.
Rejuvinating Moisturiser- as per serum
Eye complex - as per serum
So I've found it to be a bit of a mixed bag. These are just my experiences though.