Our family also use it constantly, both for video and for sending messages(for non-time-sensitive things).
Rarely for audio only, we're very english and so always dressed appropriately to take a call .
At Christmas we use a TV plug in wide angle thingy and contact(invite) a number of households worldwide.
You get 4 households on a split screen with all/extended family members on & around their sofas... and conversations become chaotic fast .
Up to four individuals or couples & works well.
It's free (on your internet provider), it's private, it works.