Does that sound like a kick-ass show? Well, prepare to be surprised.

Hero: 108 is a new animated series which airs on Cartoon Network. It arrived on Toon with absolutely zero promotion by the network (as opposed to Adventure Time, which has been receiving on-air promos as far back as January). I thought that this wasn't fair at first, but after watching Hero: 108 for 2 weeks, I can understand why Toon is being so close-mouthed about the show.
It's not as though Hero: 108 is an outright terrible show; it's really not outstandingly bad, the problem is that it's not outstandingly good, either. There are some decent elements to the series: I love the show's setting: it's lush and ripe with Eastern mysticism and mythology, and some of the characters have their own odd little quirks and back stories which could make for interesting material (for example, Mystique Sonia has a spell on her that causes any male who says "I love you" to her 3 times in a row to transform into a yaksha--that's the little pink cat-thingy on her head, BTW; Mighty Ray's lightning-like eye beams are fueled by bananas, a food he just happens to hate; Mr. No Hands, in fact, has hands, but he keeps them locked in constraints because he apparently can't control them--when his hands are free, he can't stop tickling himself uncontrollably--creepy!; and Big Green's leader ApeTrully, though he resembles a cardboard box man, is in fact in disguise--he's actually a monkey, specifically, he's the 33rd Monkey King--nevermind that monkeys technically aren't apes, but he opts to keep his true identity a secret since he doesn't think his followers would willingly follow a simian leader), but unfortunately the show rarely, if ever, takes advantage of these little quirks nor are they mined for any kind of real potential.
The show also suffers from a repetitive "wash, rinse, repeat" story structure: Typically, an episode goes like this: some fill-in-the-blank animal kingdom is persecuting or enslaving humans. ApeTrully arrives on the scene to mend fences (usually bringing gold in tow). ApeTrully's attempt at diplomacy is rebuffed and he gets captured. First Squad (our heroes) are called in and engage in some mild battles and by-play. Said animal king (or queen) challenges he squad to some sort of contest. Heroes face adversity and triumph. Fill-in-the-blank animal kingdom gains newfound respect for humans and joins the cause of Big Green. Wash, rinse, repeat. Occasionally, a curve ball will be thrown (the heroes fail to reform the Eagles in "Eagle Castle") but changes to the formula are few and far between.
Hero: 108 also gives people like me who live to categorize placement trouble: it's not funny enough to be a comedy, it's not hardcore enough to be an action show. What is it?
Hero: 108 is an ambitious idea, which unfortunately, is the epitome of average. It's just entertaining enough that one can sit through it for a half-hour and not complain (much), but it has the potential to be so much more. If the writing and execution were just a few notches higher, then this could be something noteworthy. Somewhere, buried amongst all that mediocrity, there's a brilliant series waiting to bust out.