I think the darker background color gives the whole page a better look - it's much easier to see what they are talking about. It doesn't come across as a massive amount of text with a few pictures interspersed. Much more user friendly - so that's the one I would look at to explore.
What they didn't likeHaving the light colored background throughout the entire listing looks incredibly flat - nothing stands out. All I am aware of is all the bland-looking text (too much to be honest) which is more effort than I want to expend for something like this.