If you want a microgravity settlement a near-Earth asteroid would be more convenient - or just a space station. But microgravity is not good for the health of people living there.
If asteroid mining starts to catch on, Ceres would be a really nice spot for staging mining expeditions, materials processing, etc. Combined with the abundance of water ice, it could be even more ideal of a colonization target than even Mars, especially if the effects of longterm exposure to its lower gravity can be identified.
There might also be a continuum and people living in freefall need to exercise 9 hours a day to live long term, but on Ceres its only 3 hours a day, so there's an interesting economic labor argument WRT 6 saved labor hours per day, or whatever the numbers work out to.