I got the EC65 in July of 2019 and I find it quite useful. It is my most often used EDC light presently (I carry several most of the time!) I have the floody optic in it, probably the 10623, I'm not quite sure and haven't had time to compare it. Anyway it's a great floody beam perfect for close-in work of all sorts, and the Nichia tint is beautiful! I'm glad it's readily modded and uses a standard optic!
The output is to my mind a nearly perfect compromise between power level, the light's size, and the length of time in turbo.
The UI is great, but I'm disappointed there's not a bit better leveling at the low end. It should have:
1. A true moon mode, probably around 0.5 to 1.0 lumen
( Adding another level to the existing 5 including turbo).
2. Less spacing between the existing lowest level and the next one up, probably by making the next one up a bit lower.
3. I'd really like the option of a tailcap magnet. I stuffed one in there at the expense of being able to use protected 21700 cells (not a big loss for me), but it's not very strong, which is due to the smallish amount of space available for a magnet along with the non-flat tailcap reducing the magnetic flux available at the steel surface of what the light is stuck to. I do like the diminutive size of this light whilst retaining the ability to house a 21700 cell, but I'd probably sacrifice a mm or two of longer length for a strong magnet option.
Just my 2¢!