This are really a great drain plug!  Because you do not have the tilt-lever mechanism getting into the water flow, hair does not become entrapped, plugging the drain!  I do recommend that you also buy the Mounting Ring for your Vessel sink, as this enables a more stable and leak-proof mounting surface.  Additionally, you can easily clean under your sink because the mounting ring holds the sink up by about 5/8", so you can get in there.