They are fun, but expensive. My son has one. You need the special paper to write with it for it to read when was written.
Then it has the modules for the math or writing skills.
We haven’t used it to where you can upload info to your computer – I don’t know if it can actually be used like that. And because it is not cheap, he can’t bring it to school. I woudl be too afraid it would get ripped of by another kid.