I just love this bluetooth. I like that I don't have to stick it in my ear. The light is fine during the day (unless you have sunglasses on). I forget to turn off frequently, but that's just the way I am with every bluetooth I've owned. So, you just need to get in the habit of remembering to turn it off when you get out of the car.The power button is not too small. It's right on the front and it presses in pretty easily with normal finger pressure. I've never had any problems with that. The blue light is a little annoying at night, but once you get used to it it's okay (I never forget to turn it off at night!).Hubbie says I don't talk loud enough when I use it, but he's the only person to say that. So, I just try to talk louder than my normal voice. I love it!