Started months ago about four, I type now without problems and with nearly 300APM quite satisfactory. My error ratio is just under 1-2%.
I would have liked to see more statistics and maybe a few more meaningful games where you have to tap all the words instead of just individual letters.
In Tip Queen I go as follows: Only the new letters rehearse (simple but effective), then practice the new words, until the error ratio below 3%, and then go through the 3-4 exercises individually in several days until all below 2% and are completed on 200APM.
My tip: I purely the link in the Autostart and tapped one round, once you drive up the PC. Once a day, an exercise and in just three to four months can you tap wonderfully with 10 fingers! For me it worked!
Interesting: I can no longer tap with three fingers, there have recently tried for fun times.
The games I never play and the meaningless word combinations of Tip Queen I never typed. The tests also incidentally not necessary.
For the price totally worth it, albeit outdated presentation. But it works and that's the main thing.