Do you think Brain Age of nintendo DS is cool?

I want to buy nintendo ds and also brain age.I've tried these kind of brain games in the internet and i like them a lot.It's like your brain works better,that's the feeling i get.
What do you think of brain age?Is it worth buying?

i think one of the coolest aspects of the DS is that some of the games aren't "games" at all. The thing becomes more like a portable PC and general entertainment device. I say buy it