I got this for my 7-year old, along with a DS-XLi. Both of us are quite happy with this.
The Good: The case is sturdy and DS fits snugly too. Most accessories in the kit are really essential - the game cases, the protection screens, the travel charger, the straps for the DS, and the cleaning cloth. I'll be using the USB adapter very soon, as well. The pouch is good to store everything else that don't fit in the case.
The Bad: There are so many styluses that come with this; but not all can fit in the case. So, I'm sure, we might end up losing one of them. Same with the spare protection screens (not sure, where to keep them safe).
The Ugly: We tried to use the docking station; but it is cumbersome. And, my kid doesn't let go of the DS even when it is charging. So, this hasn't been of much use to us. Maybe for someone who likes the blue-LED light :)
Overall, this is a great deal for the money. Couldn't find a better "all-in-one" kit either online or in-store.