A few months ago I saw a Klemt Echolette on ebay and picked it up from a guy in London.
It doesn't have quite the exact echo taps to copy the Meazzi, but it's close on the Wonderful Land pattern and the Apache one is reasonable, but the main thing that over rides the digital boxes is the sound of these mechanical machines. I don't know what it is but they sound amazing and when punters come and tell you how good it sounds, you have to consider that there's something special in there. One advantage of the Echolette is the fact that you can alter the head volumes individually, which is part of The Shadows sound. Charlie's machine does a good impression of the Echolette, but something is missing compared to the real thing, as with all of the sounds on all of the digital units. I can't begin to describe what it is, just a magic aura that sits behind the sound and makes the hairs on the neck stand up.
The Booner sounds terrific as a Binson clone, just as the Catalinbread does, but the magic of the mechanical machine is once again elusive. That said, unless you had one of each to compare side by side, I doubt anyone would guess which was which.