I have the superhawk, which was knighthawk's predecessor, and I like it a lot. Mine does not have the wgt pockets in back, nor the "depth-compensating cumberbund", but neither has been something I missed. I find it a good bc for my kind of diving, which is warm & cold, reef & wreck, rec not tech. After 100+ dives, it has stood up well. I found the pocket size just right, tho' it looks like they made them smaller on the Knighthawk. The weight ditch systems is easy to load (as long as you don't need 40 lbs or so) and, tho' I haven't had to ditch, it's easy to remove the weights topside - so I assume it'll work as well below.
Hope this helps.