So I'm in need of a new vibrator but am tired of spending money on ones that don't last long. I can't buy a Lelo right now because the converter/charger won't work when I go back to the states, but the Jimmyjane will work with an Australian/US adapter. Now I just need help deciding. I am leaning toward form 6, maybe form 2. I don't know much at all about form 4, but I was wondering what your opinions are.