I was never able to get "Take a Look" to work for me so I went to Safe-Zone Helmet mirror from Amazon cost $40 but the mirror is bigger and much easier to adjust and I no longer have a mirror on my bike.
I, too, use the Safe-Zone helmet-mounted mirror. It is huge and provides a crystal-clear view. My only complaint is that I occasionally knock it out of adjustment by forgetting I am wearing it and bumping into things (like my car's door frame, for instance).