The light in my classroom is controlled by an activity-based sensor on the door. Since my classroom is across the room, my lights are always off, forcing me to stop typing and turn on the lights. My gamer son complained about this and told me I need a gaming keyboard and mouse because they glow. This was a game changer for me! When the lights go out, I can keep typing in the dark! No more wasted time! I also like the feel of the buttons and am picky. They just need the right amount of pressure to make them work. This is also my first time using a gaming mouse and I love it. I have arthritis in the thumb joint of my dominant hand and this mouse is much more comfortable for me than the regular one. It doesn't put any strain on my thumb at all. I wish my son would have told me about this system years ago!