This is good practice, the lower levels are good for beginners, once you get to hard and expert though be ready. Challenge is fun too. Good info in the study guide too. You must still play smart though if you plan to make money, it is much tougher in the casinos so be ready to have your count thrown off, practice at home with loud music and distractions to improve on this.
Phxiphoner about Card Counter, v3.2