Have you played on a Diamond before? Only asking because the balls bounce off the rails significantly differently than a GC, and also the standard Pro-Cut pockets play tougher than even a triple shimmed GC set up for one pocket gambling. That's why I suggested earlier if you get one, to request the League-Cut pockets.
Just make sure you play on it somewhere before pulling the trigger.
Now that you mention the email back, I recall they had a few tables set up, but I think they were very close together, and not really meant for play, but rather just as a showroom. I forget, its been a few years since I went on the factory tour.