My girls live on the computer, so when they told me they couldn't get the Barbie Doll'd up nails to work correctly I was ready to pack it up and return it, but I took a couple hours out of my schedule to play around with it. The main problem is the alignment, and you just have to get "The Hang of it", after we figured that out, we had loads of fun with it. Get it centered and move the side guides in to match your fingernail, when you are ready to print, make sure that none of the skin at the base of your nail is visible on the "camera" screen, this eliminates getting the ink on most of your finger. I left the designs on my nails for work and alot of my clients noticed and were very impressed! I don't know about my kids, but I couldn't wait to get home and play with it some more. Already looking for ink refills to stock up, but haven't been able to find a source online. This is the coolest toy if invest the time in figuring it out.