"It quite happily accepts a range of resolutions from 640x350 up, and a range of refresh rates up to 75Hz in all resolutions. 75Hz is enough for anyone, but when it comes to actually drawing the image on the screen, the input refresh rate becomes irrelevant next to the physical time it takes for each pixel to refresh. In fact, I'd say the pixel refresh rate was quite low indeed on this unit, running a Q3 timedemo or even just playing a fast-paced game leaves a faint ghostly trail behind any moving object - in the case of a first-person shooter, the whole screen is often moving so it becomes quite hard to see small objects accurately. If you're a hardcore railgun freak in Q3, your accuracy will go out the window. This was perhaps the most dissapointing aspect for me, and the reason this unit was moved off the games box."
Ripped from a review on oveclockers australia, ive heard of alot of issues with fps gaming on lcd monitors and this site wasnt the only one complaining of this issue!
If it works ok for you thats great! He may want to see if he can return it if the particular model he picks up sucks at fps gaming if thats his thing!