The title is misleading, because even though I do like some of the mini-games, it's not at all what I expected. The mini-games are of the "brain training" variety, which I do enjoy. I am a word game nut, though; so brain-training word games are right up my alley.
I rented it from Gamefly, which I would suggest rather than buying. It's mildly fun, but should be a $15 game, not almost $30. If the price went down, I would consider buying.
For a better "vocab builder" with better games (though not as many as with this game) and better gameplay overall (more user-friendly) I would suggest My Word Coach, also from Ubisoft. Some anagram type games, but more matching definitions to words and spelling (presented in a fun way). Also has a great glossary.
For a better word game overall, I would highly suggest my favorite word game of all time, Word Jong. You can play it for 10 minutes or an hour and it is lots of fun. Not much of a vocab builder as you don't get definitions, but great fun for people who like Scrabble and Mah Jong (like me!).
This game reminded me more of Jumble Madness, although I actually liked this one much more than Jumble Madness. I actually traded that one in. Definitely too many anagrams (although that is the point!) and the Jumble Jong is inferior to Word Jong.