I honestly feel kind of insane writing this, considering that this pilot was widely panned upon release back in '02. Personally speaking though, I loved it!
I thought the old school CG was really well stylized with the 60's/70's mid-century psychedelic vibe. The aesthetic is like part Jetsons, part Space Channel 5. The animation reminded me of stop motion, which I adore! Additionally, I found the characters to be likeable and I really liked the music. The character designs and worlds are also super imaginative and fun!
It may not be the funniest cartoon, but I found it to be very entertaining. I wish it had been picked up!