This small world will likely be the gateway to the outer solar system someday, along with Pallas, Juno, and Vesta. They’ll provide at least some gravity for the inhabitants there, and the necessities of life as long as we have the technology to harness the resources properly. Water. Metals. Potentially even hydrocarbons.
My personal vote would be that we colonize the Moon first, and then skip Mars until we have Ceres domesticated.