Without Wi-Fi capablities it's nothing, but it can still be a bit of fun, it's easy to use and it comes free with the DS
The main problem is that it's pretty much useless, especially for an older audience. Playing a few games of hangman or drawing some weird pictures is just about the most you can do, even with all the features it has. There are some good gams you can come up with, but you will get bored quickly despite how well the program is.
It would have been nice if Nintendo could have made some kind of chat system, with a security feature for parents, but instead they went with this. It's still good in terms of value, graphics and sound, but could have been much MUCH more.