The thing about the BR-2 is that it's very selectively used by Justin Chancellor on a select few tracks. For example, he turns it on and off for a few specific single notes in "Jambi", and only uses it on a short passage in "Rosetta Stoned."
It's probably the least used effect on his board - everything else sees a LOT more action than his BR-2 ever will! It's not that hard to use if A) you're building songs around the sounds it makes, and B) you're using it for less than 30 seconds at every gig.
