This lens needs its own thread now that it is available.
I just got mine and haven't really had time to do much with it but I did take it outside and fire off a few of my pooch.
these are unedited, no sharpening applied in camera or out of camera.
color, sharpness, AF speed, IS (I took a few photos inside the house) are all what I was expecting. The sharpness in particular is impressive from what I can tell; I can't wait to get some strobist work with this lens!
my favorite part? "hey, where'd the background go?!?!" The bg blur is gorgeous IMO. I was apprehensive about not getting the 2.8 but this looks fantastic to me!
200mm. Not taken at minimum focal distance but also not too far away from it. I'm assuming it was 6' away or so. I did not MFA the lens, I just slapped it on and started taking photos. I think it is very slightly front focusing based on analyzing my batch of photos.