The service never functioned with the efficiency that was advertised and was one fifth as efficient as a competing program that I had been using. In my most recent useless conversation with their customer service, they completely stopped responding when I explained my experience, but made it so that I could not longer access my paid account.
EDIT: Upon leaving this review, Krystal Growth has sent me numerous emails in broken english that have escalated in level of abusiveness, name-calling, etc.