well, obviously it doesnt have the range or the weather sealing of the DA*, but there are some pros.
1. its 10% of the DA*-s price. Thats a big pro if you ask me
2. fully FF ready
the AF is good, the image quality is great. here are a few pics from my first trip (and first usage actually) with it. They do not fully represent the lens since its my first outing with it, but the image quality is great
no sharpening done on the pictures. I'm just learning to use the colour sliders in LR
value for money, this is THE lens to have in K mount