The unaired pilot with Amanda Walsh instead of Kaley Cuoco

Have you seen it? What are your thoughts? Apparently test audiences thought the Katie character was too mean which led to her being replaced by Penny. Also, it's a bit strange seeing Sheldon having a sexual appetite (in this pilot he likes women with big butts, and he once had crazy sex with a female nerd while reenacting some sort of Vulcan mating ritual).