the oversize Lolumina is a great addition to my camera.
For me the quality is not so much “ stability in low light” which I really don’t think is the best thing that a button like this gives you, but the fact that it allows my big hands and fingers (with poor dexterity due to hand problems) to work well with the camera.
I went for the large red one.
If you are afraid to look silly you have inconspicuous solutions too.
I am 120Kg. 183cm bald man often sporting hats. I am used to be conspicuous, no matter of black or whatever other color you may consider less conspicuous, would ever render me stealthy nor do I particularly care to be.