I've heard mixed things, I'd be curious to know what you think. I haven't looked into it, but I would hope the Behrninger version would come with all the "intended mods" available via switch or something? At LEAST the Kick mod.
On another note, I love the Roland TB-03, it slays the Behringer clone sound-wise, and I'm glad that it is programmed the way a classic 303 is.