I have had this lens for 2 weeks and have compared it to 2 of my Nikkor lenses. My 24-120VR and 18-55 kit lens. It performs a least a good if not better than both lenses.
The edge sharpness is somewhat soft at wide open aperture, but is very good at f11 and f16 throughout the focal range.
Autofocus works well except for close ups where it has trouble locking in. I recommend switching it manual which works well. OS works very well down to 1/30s.
Overall it is well worth the money for a do-it-all lens.