I don't know much about Changshu in these cities. Personally, I like Kunshan. Kunshan is a small city with a large foreign population, so I don't exclude it. Compared with Suzhou, Wuxi has heavier cultural temperament, better urban construction, comparable employment environment and slightly higher housing prices, so the cost of living in this area will be higher, but Suzhou's food culture is a little higher than Wuxi's. Jiangyin and Yixing are two places where the gap between rich and poor is crazy. Jiangyin's urban environment is stronger than Yixing's, and the employment situation should be that Jiangyin is better than Yixing.
In fact, the key is what industry you are engaged in. These cities have their own emphases. In fact, it is important that the city is not too big. For example, even if you buy a house in the suburbs of this city in the future, it only takes 40 minutes to go to work in the city center 1 hour. You will feel that small cities are really good, which is also a disguised way to reduce the cost of living.