For each activity there are typically several levels to select from. If you suspect that this will be true for your child, then check out the JumpStart Preschool Jumbo bundle. You'll receive 3 levels in 1 package. Quality Overall, this is a good quality product and is easy to use. Children just need to 'point and click'.
Navigation is pretty obvious.
It was reliable and easy to get started. No installation was necessary. The graphics and animations are nice. Out Make sure you try out the Progress Report. The value to me was finding out which areas my son was actually using.