[gchappel]

Glad you like it.
It took me several rides to trust it, but it really has not failed me yet.
It does have blind spots, can not see around corners, loses cars on rolling hills- but all in all it is terrific.
According to the guys behind me, the light flash pattern changes, and it gets brighter when it detects a car. This is supposed to make you more obvious, the drivers notice the change.
For me, what I like it especially when I am riding by myself, I do not have to stay glued to the mirror, I can relax a little.
At least on my system, using the Garmin 530, I wish the beep was louder.
Stay safe out there.
Gary