So I know that there are a LOT of great options for the 116610LV out there, and I contend that the ZF, despite the price increase, is worth the premium over its closest competitors, VSF and ZZF.
ZF usually charges within market range for ALL of their models. However for the sub, they have been pretty vocal about not only their quality, choice of materials, and finshing, but it also took them quite some time to get this done. They priced high, higher than most, so I decided to see what their fuss was all about.
I've historically owned Noob, ARF, BP, GMF and ZZF submariners, and this feels the best that I've ever had without mods. The mag crystal alone is one of the best I've seen - even compared to prof's xtal. I unfortunately don't have a VSF to compare against but it's very well done. The bracelet and all elements are high quality, highly precise, and it just feels much better than any rep sub I've owned.
Pics:
^Pic comparing the mag crystal. The Kermit has no AR, and the 16800 Tiffany has a prof 2xAR on the mag. The ZF just kills it!
^ This is a pic with each watch in the same position, same lighting but different spots with respect to the lens, for comparison. The ZF crystal really shines here (or doesn't!)
More pics: