I loved it just for OverRun, it was great fun. Never tried the campaign. I got bored of Gears campaigns very quickly after one. On Gears 2 I think I made it 1/3 through. Gears 3 I literally did not even finish the opening level. Gears 4 I made it a few levels in. Just not a fan of the corridor run, firefight, corridor run, firefight formula.
But you make it sound as if Judgement is very different, maybe I should check it out.