Pros:
    * very solid barrel,
    * reasonable dimensions for the optical parameters offered,
    * excellent center-of-the-frame quality,
    * good image quality in the corners,
    * quite well-controlled astigmatism,
    * sufficiently low vignetting for this grade of equipment,
    * good price/quality ratio, 
Cons:
    * high levels of chromatic aberration throughout the range,
    * too high coma,
    * uneven performance against the light,
    * mediocre AF performance. 
Tokina’s engineers set themselves a truly difficult task. They wanted to make a lens with good optics providing the user with ultra-wide angles and a good, constant aperture of F/2.8. Had it been easy, every manufacturer would offer us a lens alike. So far, Tokina is the only one to have it. How can we rate the outcome of their efforts? Without a hint of doubt, positively. The lens is not bare of drawbacks. Its CA could be lower, it could do better against harsh light and have a better autofocus. On the other hand, Tokina produces really sharp images throughout the whole frame and focal range. What is important, all these are managed while keeping reasonable dimensions and a price acceptable for an amateur. I have no doubt the lens will find many a happy owner on the Polish market.