Talking personal problem through private channel, instead of leave messages on message board in public.
Take the initiative to contact your customers, like the salesperson introducing the products in real store.
Decrease coding cost for the chat APP implementation, release more time to coding other features in your project.
Setting your own role, name, images and other profiles.
See the customer list and know which page they are viewing.
Email/SMS to users which has unread messages.
Get the number of people on pages in real-time.
Try it!