I had a fairly cheap ?Tasco for my rimfire for over a decade. The whole reticle illuminated: choice of red or green, and a brightness scale of up to ten, but where 1 was still quite bright.
I didnt like it: far too "busy", and the reticle overall created a lot of flare. So I almost always kept it turned off, until I sold it on to someone who can use it better.
I have just acquired a Swarovski for my .308, and it has been a revelation: the orange dot is sharp but tiny, so good even for zeroing. and I love the daytime/nighttime switch that gives two (in my case totally) different intensities of reticle illumination. But it's a really simple reticle (unless I turn the "doughnut" on for a running shot), and so does not look at all cluttered, let alone flare.
I have just had six really good sessions with the scope, zeroing and then dawn and dusk stalks, and I don't think I would ever want to go back to a non-illuminated scope; I really didn't think the IR would be as good as this.