It ran very well for me. The monitors were not anything special, just 24inch widescreen 60hz 1080p. But ended up looking pretty nice, played alot of Dying light with my good pal that came over and hung out while the wife was at work. Witcher 3, Crysis 3, Doom played perfect with mostly ulta settings, and looked good with no alterations to the screens. Stuff like fallout 4, Prey, and one more i can't recall looked very bad with out widescreenfixer or something like that to fix on screen indicators, radar etc. (overblown and stretched out )
All in all, really fun and love the real estate of three monitors. But man does it take up some room, and cords, and outlets, and makes alot of heat with everything plugged in and running. While it was fun, cool, immersive, and downright awesome i don't think it's the setup i want to pursue. But I will be looking for a G-sync 144hz or above gaming monitor here very soon.

Alienware 17R3