I love my Echo, have two extension Dots as well. But I think there probably are, or easily could he, privacy issues. I just don’t happen to care. Not sure how the Google One works, but Amazon’s has a “wake word.” I use Echo” for the one in for the other two scattered around the house. That means it’s always listening. Always. Is it storing what it hears? Don’t know. Don’t care.
It’s awesome. Great speakers for music. A library of thousands of songs. How old is... how tall is... when did whoever die... it’ll play trivia, ask it how to spell a word, the date, the time. It will automatically ring your phone until you find it. Even give you the address it was last noticed at. Ask it what day of the week any date fell on past and future. Accesses and reads from Wiki, News, weather anywhere in the world, outside temperature. Shopping list, to-do list, reminders, timers. And sooo many more things I can’t even think of. I use it all. Absolutely adore it.