My review of the Nikon 70-200mm f/4G ED VR is in progress.
I am forming some preliminary conclusions about certain aspects of its performance, but due to some unexpected results, there will be a delay of up to a few days to cross check what I am seeing (and zooms are always a lot more work than non-zooms).
Tonight I had some fun shooting at dusk. But there is a short window of opportunity; autofocus quickly becomes non-viable and even magnified Live View goes gritty (noisy) when the light level drops. Focusing manually, I found I missed focus on one of my preferred shots, but this one worked out fine.