I have been living with the Echo & Alexa for about two weeks now. I have found it useful but oh so very frustrating. I think Alexa struggles with the Australian accent (and I do not think that mine is a strong accent). No matter how many times I say a word beginning with "a", Alexa seems to think that I have used a word beginning with "i" irrespective of the context. I reckon that happens at least 70% of the time. That is just one problem. I have had to change the name of my main play list a couple of times in order to improve Alexa's accuracy in choosing it. I guess it is a work in progress but I am yet to see any signs that Alexa is improving the more I engage with "her".