I found that the sand side was definitely best for the rougher bits of my heels, and the loofah was great on the sides of my feet. I didn't do anything very special when using the mat (other than spin around some and shuffle my feet while rinsing my hair and in between shaving my legs), so I wasn't expecting much. I was wrong! After just my first shower my feet were noticeably softer and better looking. No more dry crusties!
To care for the Solevation you simply rinse it off and hang it on the shower wall to dry off. It seems to really attract hair (especially long hair like mine), but if you hold it up and direct water on to it, the hair will rinse off very easily. A Solevation is meant to last about 9-12 months.
The Solevation is $28, and you can buy it in stores in Canada. In the US you can order from their website using PayPal.