Well I have trialed the "Video" feature of Zwift Plus (it's free for Zwift subscribers for a week before I am accused of excessive paypiggery).

I did the Upper Bonette route. It looked okay on my TV, but I'm also used to slightly shitty picture using AppleTV. Apparently it looks worse the more high-def your output is.

It really does feel quite lifeless. You can't steer, there's no sense of motion really. The camera for some reason is sort of off to the side to create a cinematic feel, but it just pointed to the barren slope on the side of the screen with basically no views of the alps during the ascent. You can't do group rides or races on the routes. Seems incredibly pointless right now. Maybe if they really flesh it out it might be worth doing instead of regular route, but right now, routes are a DOWNGRADE from Watopia despite the premium price.