I strongly agree. I have one on my GCNM, Wilson Pro, Sig P226, and Para E9. Especially when you combine them for the range with a bomar all black style rear, as in my GCNM. They make target acquisition so fast and straight forward and the contrast really makes them easy to see (I find the red the best). Great combination. Even if the light isn't shining through them, they still work.I really find myself being drawn to fiber optic front sights lately.
They just really POP for me