When I was in Hong Kong I picked up a few Shiseido samples on ones which got decent reviews on MUA: the Pureness or White Lucent gentle toner (aclohol free), gel moisturizer and foam cleanser, and The Skincare mask.
I noticed my skin brighter and clearer after using the Pureness cleanser, WL toner and WL gel moisturizer for a couple of days. When I came back home I went back to my usual cleansing products (Neutrogena facial bar, Nivea soft toner and Vichy Normaderm) for a week then went back to Shiseido to see if there was a difference. There was, tho with my budget it's not worth busting out for the full line.
I've since tried samples of all products mentioned above for at least 2 weeks over the last 3 months (my SIL went to HK after I did and picked me up more stuff!) and Pureness is... great!!! I think the brightness was due more to the White Lucent line, but seeing as it's 2x the price, I'll go for Pureness. There wasn't too much difference b/w the two except for the foam cleansers. Pureness hands down. Washes everything off, makes you feel squeaky clean without any tautness. Just make sure none gets in your eyes. Stings like crazy!
The mask was fairly good. I haven't tried any other in the last 2 years except for Freeman's (I think?) clay mask. The pores on and beside my nose were definitely less noticeable.