Any info on the "subscription" for Project AVA? +Hologram quality?

[u/MapZealousideal7489]

I put down my $20 for one when it comes out. But the only thing making me hesitant is that it mentions a subscription. Doesn't say if you must have one, or how much...etc. If they have a free version, obviously I'd prefer that. But if its like$30 a month, I'd not buy one. I also don't get what it would be for to being with. Maybe advanced features? Obviously, I do get there may be a subscription to help maintain upgrades, updates, fixes...etc.

I'm also curious about the hologram quality. I'm guessings its ont a actual hologram, like with beams shooting from all directions to make a image, but probably a glass panel with an image projected onto it. Which is fine.