Harvesters does a lot of stuff well. It has full-playability and simplicity, coupled with a simple, Redwall-esque setting. You can play it with any group you wanted to, though its simplicity and style markets itself towards children.
It doesn't have loads and loads of stuff to make it bulky (think about game systems which go to 400 pages and detail the exact effects of a Cobra Venom Poisoned Spike Trap (Lesser), which means that while it's easier to use, it's also harder to run, but if you want a game to play with a younger audience without outright alienating older audiences (assuming, of course, they're open-minded enough to take the thought of playing as talking animals seriously), Harvesters is a one-stop shop.
[4 of 5 Stars!]