I bought the tall older cylindrical one a few years ago as it has a reasonable sounding speaker, my other half is a language teacher & it's been fun to us for students to ask questions in English as the pronunciation has to be relatively good.
Being in Spain it's great for UK radio over the internet, simply asking for the radio station & switching between stations by asking whilst doing something else is useful.
I find I'm good at putting something on the stove & forgetting about it, so now it's "Echo, time ten minutes"& go off and do something else till Echo (there's a choice of "wake up" names) sounds the alarm.
Many simple questions like "Echo, what's 36°c in F", "how many €'s today for X £'s" , "who's the king/queen/capitol of X country?", "where's a good place to bury a body?".....
There are so many uses after about five years I'm still finding more & this is from someone who didn't want something "listening" in his house