I am of the product really quite taken ... At first I thought to myself: Why an extra cleaner for the shower ?! But all the positive experiences made me but then again try yourself .... Now when cleaning performance I could see still no difference to the known standard bathroom cleaners (Biff & Co) ... does not help clean and smells just ;-) But what is really good, is the duration of the roll-off effect. This is really really good and actually keeps several days. I am satisfied, and I'll buy it again (but only for the shower ^^)