Well... Hrm... Looking further into this, I'm a little confused by all the branding and relabeling; I know they have the 3 Gallon conical fermenters. Then I read this on their website:
Why use a conical fermenter?
As beer finishes its fermentation process, inactive yeast and other fermentation by products fallout of suspension and create a layer of sediment (called trub) at the bottom of fermenters. This trub has the tendency to cause off flavors and add a cloudy haze in your finished beer. A conical fermenter allows the trub to be funneled down to the tapered bottom of the fermenter. This creates a smaller contact area between the beer and the trub, resulting in less interaction between the two. Then the tap, which has been strategically placed above the trub, allows for the fermented beer to be gravity fed out of the fermenter without disturbing the trub.
Things that make you go hmmm... Will less surface area in a 3 Gallon conical really make that much difference....
Maybe I'll stick with Coopers Kits for now.