This is a long-distance bus station serving China's Yangtze River Delta, somewhere along the Changzhou-Hangzhou corridor in the Jiangsu-Zhejiang border area, so the honest travel-insurance answer concerns that corridor and its business-and-manufacturing character rather than the station itself. Yes, coverage is worth having for a trip built around this route, since bus travel between smaller Chinese cities brings the same practical risks as anywhere else in the country - illness, injury, or a missed connection far from a city with full hospital care.
Local hospitals in cities along this corridor, including Changzhou, handle routine treatment reasonably well, but anything serious or specialized is typically referred on to Shanghai, the real medical hub for the entire Yangtze Delta region and generally a short journey away by road or rail. Confirm your policy covers treatment and transfer between Chinese cities, since the referral to Shanghai - not care within a smaller corridor city itself - is the step most likely to involve real cost and coordination.
Bus connections along this corridor are frequent and generally reliable, but schedules run tightly, and a missed connection is a genuinely common source of claims here, more so than illness or injury. Many visitors on this route are business travelers connected to the region's manufacturing sector rather than tourists sightseeing; check that your policy covers work-related travel if your trip is not purely personal, since standard leisure policies often exclude business activity.
Check whether your existing health cover extends abroad and specifically to China before you travel, since this varies by country of residence and plan, and this page cannot determine that for you.
Keep any hospital invoices and transfer paperwork if you are treated in more than one city along this corridor, since claims involving a referral between cities need clear documentation of each leg. Many policies also want prompt notice before non-emergency transfer or treatment is arranged, so check the claims process in your policy wording before you travel through this part of China.