My kids have an expression that goes “Easy-peasy-lemon-squeezy” to describe something that’s fast and easy to do. Things like beating their dad at a video game and a number of other tasks people do would fall into this category. The opposite of easy-peasy-lemon-squeezy is something that is complex and difficult and I can think of no better example than maintaining a high quality of experience for real time or bandwidth intensive applications over broadband.
The migration from MPLS to broadband is well underway as businesses look to cut the cost of the WAN with an eye towards eventually migrating to a software defined WAN (SD-WAN). The concept of using broadband for business is sound as broadband speeds have steadily increased over the past decade and there are so many flavors of it (cable, Ethernet, cellular, etc) that businesses will almost certainly be able to move the primary and secondary link to broadband. Broadband is typically a fraction of the cost of MPLS so there are big savings to be had for the company that is successful with a broadband WAN.