Sure is! It's a lot safer to give to a child than a computer (without supervision) and they can take it anywhere. It's also a lot more durable for little ones than an apple or android tablet.
There are plenty of apps, games and videos to purchase for the device that will keep any child busy for a bit or for a long while. All games are educational that I've seen. The bigger question would be this or the competitor product (innotab 2). I purchased the leap pad, don't know if the innotab is better or not. They're each good for their own reasons it seems.