It's okay. I'll be honest, the characters are exceptionally diverse and mostly relatable, and most of the episodes never feel that filler-y or horribly written. The first season was okay, started to fizzle out at the end. When it went from "absurd cartoony challenges with cartoony violence that lead to cartoony injuries" to "there's a fucking robo-bear shooting lasers", it just fucking sucked. The first season wasn't too guilty of it, but from I've seen from the third season, it's absolutely nutty bananas just how much nonsense there is.
I thought the first season was better than other shows on Cartoon Network, but it wasn't anything I'd mind missing out on. The second season felt like a cash in, the third -- while at least having new characters -- threw away the formula that made the first season watchable. If I were you, I'd miss out, or watch around three episodes to satisfy your curiosity.