Is Guangzhou Mingzhizhe Calligraphy Museum (solid hollow characters) good?

This calligraphy training in Guangzhou is ok, punctual, effective, formal and rigorous. Several of us have studied 1 period, and our calligraphy level has improved rapidly. But the study time is too short, so we need to persist in our efforts to raise calligraphy to a higher level. Learning well is not a matter of a year or two, but a long-term process, even a lifelong practice beneficial to physical and mental health.