haha, I'd take it. How bad could it be (famous last words)?
Gears of War 1 PC is infamous for poor performance issues, texture popping, lag, and stuttering framerate issues upon its release.
It was never patched-out and fixed, despite their forums flamed w/ these issues - b/c this game didn't sell well.
Throw in G4WL, and you also have the infamous profile save deletion and disappearance issue that many G4WL games have [Batman: AA, Fallout 3, etc].
And, there was a patch to fix the issue w/ the game not activating b/c of a problem w/ time calendar set for game to expire.
Hopefully, modern PC's can handle this games...or some modders fixed it themselves....