Since when do people need to type such nonsensical gibberish; who uses so many damned semi-colons?
The lessons were flawed as no person needs to type such nonsense accurately (I understand the first few lessons about correct finger placement, but after that it just becomes stupid). If it was more applied with actual real words that people might actually type some day, the lessons may become a little more worthwhile.
I got to lesson 8 before I gave up, during which I went with my own basis of >5% error = failure.