Bear in mind that the Burns is more of a bass than a guitar. Imagine a G from a regular bass tuned to E, and that's what you get with the Burns. It's not really for tuning to B or A (although that's still possible) and has a full 30" scale length.
But it's amazingly cool in comparison to any other baritone on the market, although that's not too hard due to the scarcity of them.