I bought this programme for myself, an adult with dyspraxia, having first tried the download demo version from the Nessy site. It is great fun to play the games and my typing has improved, as has my confidence. I'd tried Mavis Beacon Teaches Typing before but never progressed, as the games consisted of typing nonsense words, whereas on Nessy you only type real words, something that appeals to my learning style! Games and music are enjoyable, and you are reminded to take regular breaks.
Tried it on a visiting 10-year-old who had a good time, but would only play with the 'hunt and peck' method of typing! As with all typing games, you can 'cheat 'by looking down, and not using the correct fingers.
The disk tends to crash several times per day in my Mac laptop, particularly if the keyboard is touched while the game is loading.This happened with the demo version, too. Frustrating, I don't expect that to happen these days. That's why I'm giving it four stars rather than five, but apart from that I can't fault it.