Image Quality: 8.5/10Sharp and fast, able to work quite well in low light.
The subject in focus really jumps out as compared to the background.
Bokeh is somewhat creamy wide open. No vignetting or CA observed when wide open.
Build Quality: 8.5/10Sturdy and tough. Able to withstand knocks and dings.
It's got a smooth finish and weather-proof.
The focusing ring is well damped, easy go manual.
Usability: 9/10The 200F2.8 is an extremely light lens and is very different from the 70-200F2.8 counterpart.
Focusing is a lot faster on the prime, weights a lot less, easier to handhold.
Quite spot on, and rarely hunts.
Purchased Price: SG$1000Similar to the cost of Canon's 70-200F4L or Canon's 135F2L.
Overall Rating: 8.5/10I'd give it a recommendation if you are often using the tele end of any 70-200 lens.
Its image quality is a lot sharper, focusing is faster, easier to handhold than any of them zooms.
However, the focal range in my opinion is neither here nor there.
Not to mention you loose the versatility of the wide end on a zoom lens.
For portraits, get the 135F2 instead...