I bought a large size at Costco. The lather is rich, the scent is pleasant, and most importantly, it reduced the oiliness in my hair. I've been struggling with blemishes and excess oil on my scalp lately, but using this along with the Dandruff and Everyday shampoos has really helped. The cleansing effectiveness is also great.
If I had to point out a downside, it does make your hair feel a bit stiff, so you definitely need to use conditioner or a hair treatment afterward.
