What is advantages and disadvantages of virtual circuit switching?

Advantages :

• Data is delivered in ordered.
• Reliable.
• Packets don't contain destination address and hence headers are very small.

Disadvantages :

• If one of the device does not work properly or fails, the complete connections is lost.
• In cases of crises, It won't be able to handle a lot a traffic.
• Load is not distributed in the network, Some routers may be overused, while others underused.