Have had my clarisonic pro for about 6m and haven't noticed any real differences. The brush feels very soft, I've even bought the deep pore cleansing brush and it's still quite soft and doesn't seem to do much. The body brush is similar.
I've also tried using it with a face cleansing balm and it doesn't seem to get it off properly compared with using a muslin so skin feels like there's an oily residue left.
Is it time to give up?