None of the options apply to me so I cannot vote ... I'm saving for the 600mm f/4 II. Based on my usage, I don't see where this lens fits my requirements.
5D3, 6D, 600D, RX100
16-35L, 24-70L II, 70-200L II, 100-400L, 50L, 85L II, 135L, 24TSE, 40, 100 macro, 18-55 II, 55-250 II, 600RT x 4
I come here to learn something new, not to learn how bad my gear is - I know that already ;-)!