What is the effect of real estate marketing assistant sending out housing information in groups? Does anyone know?

In Guangdong, the effect of sending messages by a new company, Feixun Group, is still very obvious, otherwise there would not be so many real estate developers looking for a group sending company to help them send messages. No matter who it is, it will not continue to use things that have no effect. It is precisely because of the good effect that many enterprises and businesses are using it. Even for personal use, after all, the price is relatively cheap.