How I Use It
I use it to teach keyboarding with 7th and 8th graders in a technology enrichment class. I've used Type to Learn which is too young for them and keyboardingonline.com which is a bit dry for middle school (and too expensive for us).
I am very happy with it. My students had a lot of success getting started and navigating around the site. I didn't have to spend much time reteaching how to get started. There is a leader board feature that you can turn on or off, and reports for teachers to print for easy progress monitoring. I wish the leaderboard used students "user names" instead of their full name because we could have a more friendly competition that way. As it is, I turn off the leaderboard because I don't want to embarrass the students who are really slow at typing.
UPDATE: I've been using the paid version since September 2014 ( I used the free version in Spring of 2013). There is a weird issue with students thinking they have typed well enough to get all 5 stars on a lesson but they only earn 4. They think they should have earned 5 stars because on the feedback screen it shows their performance compared to the goal and their performance beats the goals shown. I haven't gotten a clear answer on this issue. Sometimes, when I type the lesson for the students I can earn the 5 stars for them, but that isn't really a great solution.