I can see it helping when hunting hardwoods or pines where it gets dark before 30 min after sunset. But not on a field.
Pretty much how I see it too. If your background and overhead canopy make things difficult, illumination can help. I've needed it and used it a few times. I certainly want it on a gun that also gets used for pig hunting, as I'll hang out a bit past legal deer shooting hours if pigs are evident. It's sometimes just a black silhouette when they do show.
