I have no idea what to think here.
I'm really badly on the fence here.
One one hand, the actual animation was pretty nice. Smooth movements, good lipsyncing. From a totally technical standpoint, this was pretty great.
But then there's the whole stylistic thing. As much as I know people love animoot'd costumes and no undershirts and vests that don't drop below the nipples and stuff, I have to say that the character costumes did NOT fit the scenario. That sorta thing would work in, say, a fighting animation/tournament, or some fantasy setting, but c'mon...
These were two people in the "real" world, just outside Disneyland. It's just too odd of a juxtaposition and it hurts all 6 of my senses when I have to look at it. Have then dress characteristically, but REALISTICALLY. The girl, Jessi, could have had a striped tank-top instead of that odd fantasy-shirt, and the guy could have been wearing a hoodie and a blank undershirt. It would have conveyed the same character to me, but would have been quite a bit easier on the eyes.
Besides this, the characters were not very well done. I'm pretty glad you're looking for a Jessi replacement. Better mics always help, too.
Also, the cameo wasn't terrible, it was just overdone. Cameos should be short... like if he just was able to say "Just in case one gets dirty.", it would have had a better pace.
AND THAT'S WHY YOU GET A FIVE
PROS: Smooth animation, reasonably solid humor (I chuckled a bit, especially at her deep-voice breakdown)
CONS: Really convoluted character outfit and design, mediocre voiceactors.
Hope this helps. :D