Have the System 7 with comm since last winter, it replaced a C3pro so I can't compare it to the System 6 directly.
Fit is rather comfy, lid mechanism is way better than C3's, clicks all the time one handed with minimal effort.
Comm sound is inferior to Schuberth offering, sound is not adjusted by speed or ambient noise, max volume not that loud and sound a bit tinny and lacking bass. (seems to be the exact same comm system hardware as previously, just with slightly different buttons)
Visibility is great, visor is massive and the pinlock takes up a large portion of the available space. Leads to fog building along the edges when it's cold outside.
Sun visor used alone provides decent wind protection. Tend to fog up quite fast in winter/mornings(especially when deployed under the regular visor).
When it rains (a lot), no water infiltration but the neckroll tend to suck up water like a sponge, and takes forever to dry, and bleeds color all over.
Not impressed by the air vents performance. Beware, I rather easily broke a tiny plastic bracket on the mouth vent, handle with care when cleaning visor. It still works but I'm bound to lose it at some point.
I was not able to make it work with the Nav6 at the same time as the TFT. As far as my experimentation goes, it's either/or for the time being with the latest revision of each device software/firmware.