Are Chalk Paint® and Soft Wax good choices for kitchen and bathroom cabinets?

Yes!  You can use Chalk Paint® on most wood cabinetry.  Typically there is no need to sand or prime, although in areas that receive a lot of use, like the cutlery drawer, it might be wise.  Apply at least two coats of paint and then two or three coats of Annie Sloan Soft Wax for protection, allowing each coat to dry completely before applying the next.  Soft Wax makes a good bond to the paint for durability.  You can easily maintain your finish by simply wiping the surface with a soft cloth and mild soap and water to clean, and refresh every now and again with a light application of wax.