From a parents point of view, Hua-Hsing is very reasonably priced.  As a parent of 3 kids, it facilitated us to enroll 3 kids in the same timeline.  We happily drove from Richardson to Jasper while kids looked forward to their math classes.  The homework are detail enough to keep them ahead in math at PISD.  The staffs are friendly, responsive and caring to accommodate our needs.