I only first saw this show two days ago, but as it was a marathon, I think my judgement is all right.
I really enjoy this show. Sure, it's a bit cheesy, and riddled with forced learning, but it's FUN cheesy! Despite the episodic happenings and nondepthful approach, there seems to be a mystery behind everything, an explanation, which appeals to me. (See Lemony Snicket's A Series of Unfortunate Events). Vaughn is especially interesting, because people find him suspicious - his father is Professor Pearson, who seems to be thought the cause of all the strangeness. Is Vaughn evil? Is he manipulated? Is he nothing at all? I don't know!
When I saw this show for the first time, I thought it was The Zack Files undergone a strange and revolutionary metamorphosis. Nope, but it's a lot the same.