Had good experience with refurbished iPads for my parents. As new quality screen and case, and new battery means no battery degradation.

Intercom

Make sure you get the Sculpt Ergonomic and not the Sculpt Comfort (however it is natively Bluetooth) which is much inferior.

I find it pretty interesting that Apple is decorating their products with miniature people.

I've never seen Apple augment their product hero shots with any sort of overlaid graphics like this before because I thought it was their principle to not distract the product curves/shape.

High Sierra works great for me, no issues.

You can force it for a personal account https://calendar.google.com/calendar/r?new_calendar_optin=true

Nope still the same invitation email

While the frequency of updates is a bit over the top, I think the update sizes in this article is a bit exaggerated using the listed size and not the actual update size which is vastly smaller due to app thinning and delta updates https://twitter.com/rjonesy/status/878050139222548480