I have a blue mini phantom that I used to use as my sole light for responding. I got it because it was the cheapest LED at the time (4-5 years ago). I was very happy with it. Decent brightness and 30+ flash patterns that kept me busy. About 2 years ago I upgraded to a light similar to the dual talon, and moved the mini phantom to the rear window, below the third brake light. As someone else said, it is much better to be used in the rear/side. Since it is so slim, it's tougher for drivers to see in their mirrors than it is to see flashing as it passes them or as they approach.
My only complaint, which i will be posting right after this as a new thread, is that when it gets really cold in the car, the light does not turn on.