How does Meredith Masony’s method of 'sittervising' outperform traditional parenting strategies?

I'm sorry, but I couldn't find any specific information on Meredith Masony's method of 'sittervising'. However, Meredith does emphasize the importance of self-care and maintaining your own identity in addition to being a parent. She believes that being a mom doesn't mean you have to be a martyr, and taking time for yourself can actually make you a better parent.

Could you provide more details about 'sittervising'? Or would you like to know more about Meredith's general approach to parenting?