Glad this came up...
As a fairly recent recruit to the Yamaha fold (I blame @AndyTravis) I have been lusting after one of these for a while now.
TBH those that I have seen were a bit more than I wanted to pay, even though they're held, in general, in high regard.
My "solution" was to buy the pedal of the same name (twice) but haven't had the opportunity to try one at any volume.
I'll let you know if/ when I get the chance.