I have Alexa in my flat, main one in Living room, small dot one in my bedroom. The one in my bedroom answers to name of 'Computer', I am a Trekkie. Did have them both answering to that name, but main one in Living room lives under my TV and whenever I played on that TV, any Star Trek episodes it almost had a nervous breakdown when trying to respond to what the characters were saying!!!
I use the one in my bedroom as an alarm - also it controls my central light. With an automatic bed, I always found it difficult to get a bedside light for when bed was both raised and lowered. So now just have main overhead light, and controlled via my voice. Also, set this to jut 10% light when I settle down for the night, so when I have to get up in the night I can have that turned on, but just a very gentle light. Can also play my audio books through this little machine.
Main one, controls Living/Dining room light, gives me weather and temperature forecast for the day, and if I a going away will give that for me for where I am going. It can also, should it be necessary, call for an ambulance and/or phone my nearby daughter. As I live in a flat - a good size one - but could make myself heard by these machines from any room in that flat.
If needed I could have it set up to open/close curtains. I can switch lights on/off when not at home.
Very small cost to purchase both of them several years ago and no on-going costs involved.
They are great, but not very smart - do often have to repeat what I am asking them. Think they much prefer male to female voice commands.