It is honestly one of the worst redesigns in web history. I was shocked when I saw it and its sister sites.
Looks like the number of visitors havent change much (yellow bar) but #of page views have drastically changes for the worse due to how cumbersome it is to quickly browse and click through stories. I really tried to like the new design by I'm finding myself visiting Joystiq and Dtoid more now.
I just recently got use to it, i check Kotaku one or twice a day. At first i didnt enjoy the side scroll menu, but Its not to bad. The search completely sucks now too lol. I do like the page set ups tho. With the comments and such its really nice the overall design is very friendly to the eyes, to bad the mechanics suck.
It was honestly the final nail in the coffin for my interest in Kotaku. And I don't even go to the site! I subscribe to the RSS feed and but the redesign also caused the feed items to become briefs instead of full items. Even if I could change it somehow, Kotaku posts too much content for me to care about the stuff I like. So really, the redesign caused my to subscribe to Dtoid and Gamesradar.