I think there are many use cases for this software.

For example, you may not want to run some graphical applications directly on your Mac for security, isolation or testing purposes.

If this software turns out to be lower latency than RDP and CRD, I could also see it being very useful for accessing a remote graphical workstation (e.g.: running heavy software on an beefy machine in a data center instead of taking up resources on my skinny laptop).