Okay so it's not really up to par like most other American cartoons, but it's still really not 'cheesy,' as most people like to say (I wonder what that means as an adjective).
The animation, which I saw a little, really isn't that bad. It's pretty odd that people said that this cartoon was horrible, since only 4 or 5 of the total comments talked of dislikes to this.
This series, which I remember watching once on video tape and getting it, is the only one I really saw (aside from Sonic X, which is unfortunately anime) and why I'm talking here (this might also be how I first learned of Sonic the Hedgehog). This is definitely a great cartoon, or at least from what I remember.