I had this one on my list to replace my EF 1.8, but I think I'm going to hold off for a bit. It would be really nice to have closer focus capability. But even though I do see an increase in sharpness in the test images, I can't say I look at my images from the EF and think, "Man, I really wish these were sharper." If I didn't have the EF, I think I would grab it. I think I will put off duplicating focal lengths I already have for the moment.
If I was going to replace an existing lens right now, I think it hinges on what the 14-35 ends up looking like to swap for my 17-40.
The thing is, all my lenses function really well with the adapter and give me AF that covers the frame, as opposed to what I had on my 6D. The RF 24-105L was a no brainer with the kit discount/rebate, and size vs v1+adapter. Replacing other things I have is harder to justify from an economic standpoint, since I don't make money with my gear.
