I don't personally know much about them, but what I did find was that they seem to be TRI-Sync which means they will do 15khz - 25khz - 31khz resolutions. So it should run anything you want without much trouble.
Looks like a nice monitor and it's new. (looks like a good price too)
Might want to ask the seller what the frame dimensions are to be sure it'll fit in whatever cabinet you plan to build.
Sanwa - 29PFX 15/24/31khz Pure Flat
Maybe someone else here knows more about them and how reliable they are.