A very handy product!
I just received my Jukebox and have 7 cartridges; one more than the Jukebox can hold. However, I love it's convenience and may eventually invest in another one. It's extremely user-friendly (very easy to identify which cartridge you're accessing) and because the top is clear, I find I don't even need to open it up to see which one I want to use. The storage space underneath is the perfect size to hold 6 books and 6 keypad overlays. I don't own the Design Studio and still love the Jukebox! Great investment!