I maintain two pair of boots, my super clean "drill boots," and my "work boots." I clean my drill boots with a stiff scrub brush and soap and water. I also use suede protector on them to prevent stains. My work boots are my comfortable boots that I wore throughout OCS and are stained beyond repair, and are only worn when I go to the field.

Edit...I agree with SGT Gambino the kit is useless.