A sharp quality lens! Focuses quickly and silently, provided the camera body supports ultrasonic motor. Nice background blur at large aperture.
Dropped camera with the lens on the pavement when I had the loophole less than a month! The filter broke and filter thread became bent. Disaster! Had the front lens become scratched? Had somewhat shaken down there? No, no. On the lens is visible not a scratch, works as it should after this harsh behnadling. After this, the score for the build quality to be top!
Costs a lot but you get what you pay for.
Lesson: always have a filter on who takes the hit, and get lucky!