For under $200US it performs very well from f8 to f11, not terrible wide open but likes to be stopped down. "Quick-shift" AF to MF feature is excellent, metal mount and just over 200 grams means it's easy to tote and well built. Stronger at 200mm and close focus distances than you would expect.
Sharpness is not particularly strong, it really does like to be stopped down. However sharpness is not everything and the colour and contrast this lens displays is first rate and peroduces better images than the resolution charts may indicate.