Its kind of underwhelming... Not to say its a bad app! It's just, after the whole one week trial, you kind of get... Bored? I mean, I know it's supposed to put you to sleep and all, but for me, it just kept me up till early morning. I'm not sure why, but after I did the one week trial and saw the prices.. I said not worth it. Heck, even my dad's rambles of how to play the old Tron game puts me to sleep faster!