Sean Astin as the narrator was super annoying
Aside from the team not helping out the meerkats during certain situations (yes, I already know about the rules about not feeding or interfering with wildlife), I found the biggest negative to be Sean Astin's voice. It's as if two Animal Planet reps went to a state university and visited all the dorms that housed male students and asked if anyone wanted to narrate "Meerkat Manor". Sean Astin was the only one who raised his hand.
I hope he never narrates anything else again. What an annoying voice that comes complete with annoying intonations and annoying pronunciations, etc.
That's about it. Wait . . . did I mention he's super-duper annoying?