I have the IIyama i90a. It is the best 19" Monitor I've ever seen... however, never seen their 450 version, but have read it's basically identical. Anywho, it only cost $450 at the time, but I believe it is $479 now. I don't like Refurbished stuff, so if you could get this monitor just a bit more, why not? But, if you don't care bout the shipping, guess that's a great deal. Hell, in my opinion, this monitor was one crazy deal. $450 isn't much for the greatest 19" monitor.
I'm with Time Keeper "IIyama before sony, anyday." HELL YEAH! Not a prob in the world for me, and I'm assuming there won't be.
G'luck