I bought this a few months ago for my son's 10th birthday and it went down very well. You can't tell from the picture, but it is a wired mouse. Personally I think this is better for a kids mouse as it means it stays attached to the laptop rather than being lost, which I have no doubt would have happened by now had it been wireless!
It's perfect for little hands, being a little smaller than standard mice, and as a nice little touch the wheel on top lights up blue.
The pad is pretty thin but is perfectly adequate for an optical mouse.
The designs are very striking on both the pad and the mouse - the mouse design is printed btw (not stickers) and so far looks as good as when we bought it.
All in all a super little set and a very nice pressie for kids. If they did a larger wireless version I'd have one myself!