Though fairly enjoyable, this is just not as good as brain training.
Well, it sure is a challenge! When I played it first, I thought I did well. But oh no! I had only a brain capacity of 9%. What, only 9%?! I was shocked, I got depressed, lost my job, have marriage problems... Well, not quite all of that, it's just that this game is very, very harsh. If you're good at it, you can make it to a high C, a B or sometimes an A. Yesterday I got my first A+!
But, if you just make one mistake, you will score much lower, like a D. Very frustrating from time to time.
Some minor points: everytime you start a daily challenge, you get a question you need to answer. After the challenge, you get the answer. I already had 4 times the same question.
Also, the game sometimes makes mistakes about how often you do a test. I did the test everyday, and this morning, the (cute but harsh) nurse complained that I didn't visit her in a week?!
Apart from that, this is a reasonable fun game to play, and it presents itself pretty well. But after a few weeks, you won't be so challenged anymore.. NEXT!