Any Litter Kwitter advice

I've been thinking about trying to toilet train Izzy. Izzy is prone to litterbox acrobatics. She hates touching the litter and will contort her fat little self into crazy positions to get her business done while minimizing litter contact. It doesn't matter that I scoop daily and clean the box with soap and water every month. I've even tried different types of litter to see if maybe that's her issue.

I've done a bit of reading and found a product called the Litter Kwitter training system. It wasn't cheap but I do like that it is re-usable. So I can use it to train all future felines. Does anyone here have a toilet trained kitty? And if so, do you have any words of wisdom to share?