Yes, I did work with it. It was decentered, but, fortunately, was very easy to fix. Appeared to be very sharp, I'd say amazingly sharp, thru the range, after all. A bit of CA, distortions and vignetting, but nothing what wouldn't be fixed in post-pro. I'd not pay $300 and more, but $220 and less so is good price for good copy today. $100 or less for 28-70D is OK, but for very last copies, you know better what those ### are! Good luck! LZ