Disclosure: I received this product in exchange for my honest unbiased opinion.
Have you ever tried to cut a pizza with a kitchen knife? No, typically people use those stupid round pizza cutters that clog with cheese and won't keep rolling so then they start pushing it like the cart at the store with a broken wheel. You end up scraping all the toppings onto the edge and leaving one slice with only sauce and the other with everything. So, yeah that really isn't too bad when you are the mom and get to move a few toppings back onto the kids slice and enjoy double toppings on yours. However, when the kids are watching they always call dibs and then watch as I give them the topping rich slice. Yeah, since I am notorious in my house for being the topping hog... they watch eagerly to make sure they get all the pepperoni... Little turds. So, since they don't work for a crap I use a kitchen knife now and well they don't work all that well either.
Luckily, for me the people over at TipnToss sent me a 14" pizza rocker to try out. So tonight, I bought a couple frozen pizzas and tried it out. With the average pizza being about 12" this is exactly the right size for cutting a frozen pizza at home and it is so very easy. You literally position it above and rock it through the crust. The toppings cut through, but they don't slide off the cheese and the crust cuts evenly without smooshing. Overall I am super happy with it and it's ease of use.