What are your thoughts on The Leapfrog Tag Junior?

My oldest son has the regular Tag Reader. He absolutely loves it! It gives the child control over the story and helps them learn new words and see what the words look like at their own pace. Even the pictures in the books make some sort of sound or say a phrase when they are "tagged". I never would've bought it (I think it's too expensive) but it was a Christmas gift from my mother in 2008.