I've got an everLED in my 4D M*g I used to use nightly as a taxi driver, ready to light up a house address or adjust the attitude of an unruly passenger, and had tried a variety of locally sourced bulbs ( cut me some slack here, this was early 90's). Brightest was a Radio Shack Krypton that was a little overdriven, but didn't fail me.
It's been retired from professional duty for a while now, but I switched to the everLED about 6 months ago, and I love it. I now carry it on long night walks in a side backpack pocket with the head sticking out, ready for quick access.
It's VERY white compared with my ARC 4+ Second (EDC), my Streamlight 3AAA luxeon tasklight ( door pocket of my Explorer), or my AA-Lithium CMG Reactor (glovebox of wife's car, lithiums for long standby) and brighter than any of them.
The focusability of the M*G is still intact, and even though tests I've seen of the everLED say that the total light output is about even to the original bulb in a 4D M*G, I feel mine is significantly brighter than stock with a much smoother hotspot when focused and more throw than the original. It's turned a retired light new life as a valued member of my flashlight family.
I gave another everLED to my Stepfather for his birthday, to upgrade the 3D M*G he carries on his night maintenance shift, and he's been thrilled with how long his batteries have lasted and how bright it has been.
We're two for two with everLED so far...