Being able to yell "Alexa, turn my lights off" has been handy. Alexa recently interrupting me with notifications that are just "Hey, some garbage you don't want is on sale" has me thinking about throwing the thing out.
Me, as well, but there's got to be someone whose job it is to calculate just how often it can interrupt people with ads without them throwing the device away because I've been saying this for years and I still have my glorified alarm clock/light switch around.