Took me 10 minutes to figure out how to do pitch/tempo change (have to click the button marked "off" first ;-)

Symmetrically opposite the Left-Right channel volume meters are two sliders, marked with a single "volume" icon. No, they don't adjust the volume of the Left and Right channels, respectively; the top is volume (and which way is louder?) and the bottom is... oh: balance.

MachineHead font is really just ugly, imho.

Why rotary controls? Didn't they die with iTunes version 1 ?

I really like the functionality, and I hope this becomes a lower-priced alternative to ASD (speaking of bad interfaces). But I wish audio apps would stop insisting on looking like audio hardware, at least in the interface elements.