A week with Amazon's Alexa - what's the verdict?

“So is she is listening to EVERYTHING we say?”
“Well technically yes, but she only takes notice when we say her name”
“So does she forget everything else she hears?”
“I hope for all our sakes- particularly mine- that she DOES sweetheart”
Half an hour in to our relationship with the Echo- relationship is the awkwardly truthful way to describe the level of my family’s interactions with it after just six days- my daughter asks this poignant ques