I prob should have elaborated more. The things I hated about it were mentioned after I posted. Mostly that it rubbed and kinda stuck to the paint. They advertise it as though the foam pad holds more clay lube and therefore makes it glide smoothly. I did not find that to be the case. Although I quit very quickly after I felt the way it stuck to the paint while in motion.
IT does also take a lot of clay to fill it. Kinda hard to get in and out of the holder. So turning and kneading the clay would be a hassle. I turn and knead the clay frequently (and If you don't, you should). You dont want to keep rubbing the grit you are picking up back on the paint.
I am a huge Griots fan. Have been a customer of theirs for a good 7 or 8 years. In fact, they got me started with machine polishing back then. At that time they sold the PC7424. This clay holder is one of the few products of theirs that I have been disappointed in. Their service is also top notch. I'd be willing to bet they would take it back if I called them and complained. And I have had it 3 or 4 years. I just never have because it isn't a flaw in the product. I just don't like it.