Definitely a guilty pleasure for me. I think it's something about the combination of the ensemble cast with the eliminations. A fair amount of inconsistent writing, lowbrow humor, and subpar animation, though. (Though I personally don't really hate the animation.)
Second season . . . well, pretty much no one liked it. Sadly, it was only there that Cartoon Network stopped Bowdlerising it. I think you could skip from the first season finale to the second special, should the third season turn out to be good. (Well, you'd need someone to tell you that Gwen and Trent broke up, and maybe that Beth got her braces off.)
I'm inexplicably optimistic about the third season. It's got some characters who still haven't seen much of the spotlight, and the globetrotting bit to me sounds like just enough of a departure to increase variety without feeling like they've completely changed the premise. Of course, they could screw up the former by favoring the regulars again, the new characters are a bit iffy ("The Archvillain" isn't much of a character type), and then . . . there's the whole musical bit. Now, I like a good musical, but, well, I like a good
musical. Seems like a very easy thing for them to screw up.
Random fact: The winner of each season was the finalist I didn't want. Combined with the ridiculous amount of screentime they've gotten, I hope the previous winners get out early and stay out. (After TDA, I feel like I can't even trust the writers with the latter.)
Did a quick YouTube
search, Trueteal. Does this show up?