I only got this game about two weeks ago and I have played it every single day and I am very addicted to it. i really enjoy doing my 20 minutes a day, and feel like I am using my game console to further myself!
There are a variety of games to coach you your new words, and when you get any wrong, they definition of all the words covered is provided afterwards.
Some of the games I find difficult, but the more you practice the better you'd become. If you like 'Brain Training' then you will like this.