Well, it arrived and eventually I stuck it on. As far as turning the coffee machine on or off it works as expected. I have to use the app as you need to buy an additional hub which lets you use wifi as opposed to bluetooth. If I had other devices I would think about it but I am not paying out another £25 just fr the privilege of using Alexa!
Video will follow tomorrow when I work out how to video and use the app at the same time!