Obviously if you're considering this item you're generally comfortable with the price tag, which is substantial. I am here to say that it is worth it. It's hard to ignore the construction quality that goes into this item.
I can't imagine they're making hundreds of dollars off of each of these -- it's an impressive item that has a lot of electronics involved into making it.
We are currently using the free version of the operating system and are pretty happy with it. Maybe at some point in the future we'll subscribe to pay $5 per month, but for now I don't think we need it.
One potential downside I can see for people is that depending on the wall space you're looking to place it on, it definitely sticks out from the wall more than I was picturing, but not in an egregious way -- and mostly because of all the electronics contained within. All of that is to say, when you're measuring your wall space to see whether it fits, also make sure you're envisioning the depth of the item as well.
Thanks, Yaeger Woodworks!