The first room of the gallery can be a little off-putting, because it's chock full of artwork of different genres and time periods, all crammed together, with some hanging far above the line of sight. But things get better as you move to other areas.
My favorite piece was a stunning sculpture, "E-Mukishi," by artist Maurice Mbikayi. His website explains that "mukishi," from the Luba language, means a spirit that can be used for good or bad. This sculpture, made of computer keys, cables, mice, and a game control stick, represents the Internet as a mukishi.
Right now there's an extensive exhibit of works by Esther Mahlangu, including an embellished BMW, fashion items, a television, a series of hard hats and other items. You can watch a brief video interview with her about the origins and philosophy of her artwork.