Sharing Amazon Prime benefits with Amazon Household

[NiceCupOfTea]

Can anybody shed any more light on this?

Currently my wife and I both have Amazon Prime accounts which seems a bit wasteful when we could share them through Amazon Household - however, it doesn't seem to be quite as simple as I thought. It seems there are limits (I don't think you can share downloaded films, only streaming, and you have to share payment methods, whatever that means.

Can anybody spell it out for me in words of one syllable?

As an aside, is anybody else so very weary of all this tech not playing ball together? I have a smart TV that runs iPlayer fine, but I have to use the bluray player smart facility to see other channels' catchup (including Prime video). I have a Google Home that won't control any Amazon services, nothing links properly (I have wifi plugs but can't, for example, say "OK Google, dim the lights and start the bluray (change channel on TV, start bluray, etc." - the Google Home is registered to my wife's Google account so I can't control any of my stuff. I know Google & Amazon are competitors but the consumer always loses out. And it would be sensible (I would have thought) to be able to link accounts so as they can be used in households more effectively. But what do I know

[NiceCupOfTea]

Thanks all - yes we could just share one account but we both have had Amazon accounts forever and wouldn't want to close one down.

So other than sharing a payment method it's basically got all the same benefits?