I now drive for a living, and those convex mirrors are a huge help to me on a daily basis. Once you've learned how they present images, you can use them in ways you can't use a regular mirror.
As an example, I can park a 5-ton within an INCH of the rear bumper on a low-slow Acura... I'm the one my buddies call when they're moving, and it's NOT to hike the furniture and boxes: it's to drive the truck.