No problem!
We really like the WizDog, we have it set up in our second bathroom - in the shower (which we don't use) and he just steps up, does his business, and leaves. Plus, it's close to the toilet so we can flush away the poo right away! The grate can be cleaned with a Q-Tip and if you have a yard where you can takeit out and hose it down that would be good. We have had it more than a year and have had no problems with it at all. My parents and brother have made home-made WizDogs using a boot tray (you know, those small plastic mats with a lip around them that keep the water in when snow is stuck on boots and then melts inside) and the grate. The grate looks like the same material used to cover lots of kinds of fluorescent lights. It was a cheap alternative - but not quite as big size-wize as the WizDog.