What? Without any previous training or even having a manual to read, I had mine set up properly within minutes. Just get the pads pointing where you want and adjust the spring tension with a hex wrench on each arm so the rim is centered between them. Seriously took me a few minutes.

Maybe current Shimano XT brakes are different than other manufacturers' setups or past canti brakes? Either way, I think the huge benefits they offer are worth a few more minutes of setup time when they're first installed...