Meghan put in the request about the light in my room for me yesterday and they came by today and replaced the bulbs. I turned on the light and couldn't believe I didn't report it sooner.
First of all, absolutely NO flicker. NONE. ZIP. ZILCH. Secondly, there is no buzzing from the light. It's amazing how quiet my room can be. I don't think it's ever been like this. Thirdly, I was right about the slider on the side of the switch. It IS a dimmer. Not a "how much flicker" controller.
Overall, it is just SO MUCH BETTER!