Just picked up a refurb'ed D9400 to replace my broken Betson multisync, and man what a difference. No more squishy right side geometry issues!
I was planning on writing up a review, but I started to wonder if it's worth the bother considering the monitor is no longer in production. It's a shame that in the last few years no one has bothered to review it here.
Anyway, I will say that if you are thinking of a digital multisync, I would recommend picking one up. WG has some refurbs available for about the same cost as their brand new D9800. I believe this (the D9400) is going to be the last curved, digital multisync CRT ever made.