It will be as successful as the HomePod. It's a HomePod with a screen.Yes, it will be as successful as Apple Vision pro - while great on paper, lack of real world usage will just kill it with time. lol
I think the more expensive version with the robotic articulated arm will be useful for FaceTime. And if the FaceTime caller is using an Apple Vision product, the robotic arm would allow the caller to "look around".
That product would work well at home, but you could also place several of them around a conference table in a business, so Vision Pro users could call into a meeting. They could pivot to directly address real people in the room or other remote callers.
People in the room IRL would see the personas of remote callers on the device's screen. If remote callers weren't using AVP, their regular FaceTime feed would be on the screen instead.
People calling remotely would see the room, with the other devices digitally removed, and other callers' personas in their place (or an enlarged FaceTime window for callers who weren't on AVP.
This isn't based on the rumors, but on where my imagination takes the rumors. I think AVP plus telepresence is a good combination. Apple's other rumored robotic device is a screen that can move itself from room to room.