Howdy texbaz,
That's a fair question. I have the 120P, and have found that I use the 60 lumen setting most for a general purpose light, out walking etc.
I didn't know anything about night adapted vision before coming to CPF, and like most folks, I thought the only feature that was important on a flashlight was for it to be as bright as possible, for as long as possible.
Then I discovered multiple level lights, and discovered that some times having less light is actually better than having more light, like when working close up, reading a map, trying to navigate an area without disturbing others etc.
Then I found out about the differences that a good UI (user interface) can make, and that everybody likes theirs a little different. Some folks want the low to come on first, some want the high to come on first, some want the medium to come on first.
Then of course is the almost constant complaint that the low level is never low enough, or that the medium level is set to close to the top level and doesn't provide enough variety, or....... well....... you get the idea.
The thing the NovaTac does better than any other light I know of is that it allows you to customize the UI however you want, and set the 4 independent light levels to whatever brightness you want. Have it come on in low all the time, or high, or medium..... or have it remember the last setting you used. The choice is yours.... and you can change your mind any time you like. It only takes a few clicks to completely re-configure the light.
It even has a built in timer, so you can turn the light on, and it will go off automatically after 5 minutes. Wow!
So...... it's not the brightest CR123 light available.... but the beam is gorgeous, it's quite rugged, and for a pocket light, it's amazingly versatile.
I guess it comes down to what you want. BTW, I'm really looking forward to seeing what Henry has to offer us with his latest creation.... which I've read will be available soon (possibly in the next month or so). Happy hunting!