I love formula D! It is a interesting mix of strategy and dumb luck.  My family kind of likes it.  My wife was a little frustrated with the rule book for advanced play but I found a free reference sheet online that helped clear that up.  Before the reference sheet we had to go back to the rule book a lot.  My child age 5 understands the basic rules but gets bored about halfway through the track.  I print off a Formula De Mini track from online and found it much easier to keep his attention.  I would agree with the recommended age on the box.  Finally, I also ordered extra dice that helped speed the game up but I would recommend waiting to see if you like the game to make this investment.