I got the CD for my daughters last Christmas, who are being brought up in Greece but who have been exposed to English since birth, due to having an English grandmother. My 7-year-old can now complete all tasks at level 3 (the hardest)and still loves to play. My 5-year-old really enjoys playing the easier levels and it's always a mad dash between them for the computer! I am now going to order the next two, since the CD has really helped them with recognizing letters, numbers, matching, phonics etc.