I have a Lumia 950, a desktop PC running Windows 10, and a Wireless Screen Sharing Tool for Lumia device hooked up to my TV. Here's how Continuum (does not) work(s).
With plain Windows 10:
- I could wirelessly stream my Lumia to the Screen Sharing Tool
- I could wirelessly stream my Lumia to my desktop PC
- I could wirelessly stream my PC to the Screen Sharing Tool
- As a bonus: DLNA worked like a charm
With AU:
- I could wirelessly stream my Lumia to the Screen Sharing Tool
- I could wirelessly stream my Lumia to my desktop PC, but sometimes I received connection errors when attempting
- I could NOT stream wirelessly my PC to the Screen Sharing Tool, I continuously received connection errors
- As a bonus: DLNA worked like a charm
With CU:
- I could wirelessly stream my Lumia to the Screen Sharing Tool, although I often receive the Something went wrong error and getting my device disconnected when attempting to connect
- I could wirelessly stream my Lumia to my desktop PC, but often I received connection errors when attempting
- I could NOT stream wirelessly my PC to the Screen Sharing Tool, I continuously received connection errors, and the desktop PC has trouble discovering the tool at all
- As a bonus: DLNA worked like a charm, although volume would be applied only on the second stream initiated
With FCU:
- I can wirelessly stream my Lumia to the Screen Sharing Tool, although I often receive the Something went wrong error and getting my device disconnected both when attempting to connect, or simply during any stream already going on
- I can wirelessly stream my Lumia to my desktop PC, but often I received connection errors when attempting, and I cannot stream to any device not running the FCU
- I can NOT stream wirelessly my PC to the Screen Sharing Tool, and I can NOT even discover the Screen Sharing Tool at all.
- As a bonus: DLNA volume would be applied only on the second stream initiated, connection takes longer to build-up (if at all), and my TV would simply reset every now-and-then during playback
This is how I see Continuum and Windows 10 wireless stack evolving and heading to the future.
DLNA experience is based on WMP, myTube, Perfect Tube and TubeCast experience.