Just got the Take a Look mirror (original size) this afternoon. I probably shouldn't have taken a night ride as my maiden voyage. Badly misjudged an approaching truck's speed and was so distracted by the differences between the Take a Look and Mirrycle that I nearly ran into the back of the truck when it slowed suddenly for a stop -- and the truck had signaled. My bad, not the driver's. No harm done but uncomfortable.
I'll need to wear the Take a Look around the house for awhile and try again during the day. But my immediate impression reminds me of why I preferred handlebar or wrist mounted wide angle mirrors 30 years ago, and again last year when I resumed riding. Maybe I'll get accustomed to it, but the proximity to the eye, blind spot and need to pivot my head around to approximate the field of view of the Mirrycle are uncomfortable at the moment.