I use a graphics tablet and use both Carrara and Amapi. I don't think there's really an advantage to using one, but they both work if you want to get one for use with other programs. The only thing you need to get used to is Carrara is that if you try to adjust the camara view using the trackball, it might spin around six or eight times before you realize it. You have to select the trackball tool, then adjust from the scene. Amapi is a little easier to swipe to the right to confirm/discard a tool with the pen, but that's about the only difference I notice.