I have had aimpoints, eotechs, and now have a Vortex Viper PST 1-4 in a Larue SPR mount. The eotechs and aimpoints are great for close up. I also use my rifle for hunting and wanted some magnification, but didn't want to use a magnifier (bulky, off-center weight). I purchased the Viper PST 1-4 and so far its been great. The only thing I'm not 100% sold on is durability. I haven't had any problems, but I would like to see a torture test to see what this optic can take.
Like you, I was worried about the day time illumination. For me it did not bother me, if its sunny enough where I can't see the red glowing optic, it shows up black and I can see it just fine. Once it clouds over and gets darker the red shows up. I've never owned a Nightforce, but I've heard even those don't have daylight illumination.