Should I spend the time and redesign my website?

I recently created the website http://TheBossReportCard.com. It’s a website were people can anonymously create report cards and comments for their boss.

If multiple people report on the same boss, the website will create a consolidated report card along with reporting the individual report cards. A major goal of the website is to help bosses improve through anonymous feedback.

Some recent comments are that the website is too “cartoonish”. I would like to have some other unbiased opinions. If I were to redesign the site, I would maintain the databases and logic, but make its appearance more like the myspace model.

So, rewrite or not?