I got Amerock pulls so got these Amerock knobs in brushed nickel too so that they would all match. [Different manufacturers can have somewhat different shades of color even though they are the same finish]. The knobs are perfect - not plain but not busy either and they have a nice low key sheen to them. Incidentally, if you want the reflective sheen across the knobs to go in the same direction just swivel the knobs to 'line the shine direction up' before tightening the screw-bolt all the way. If you have a bunch of knobs all near each other you will see what I mean. Highly recommended.
These knobs are heavy and have a very unique look and feel, like hematite. However, the image might lead you to think they are black; they are not. They are more like a dark metalic color. This was a re-order for me because I hadn't ordered enough the first time. Once again, delivery was prompt.
The knobs are perfect. They are heavy and very stylish. They look wonderful with black kitchen cabinets. I also purchased some chrome cabinet hinges. They are also good quality and look nice with the black cabinets. I have no problem with their products.
The only thing I would add is that, from the picture, I expected the knob to be deeper - the traditional round cupboard handle like I had be fore I ordered replacements; this is really much less round and full than I had expected, but it looks good and I am happy with it.