I haven't had any problems with Alexa's voice recognition (and I have an accent), but I completely agree that voice purchasing is not a smooth experience at all. I tried to do that yesterday with Alexa, but it just gives you very limited options and it's optimized if you want to mostly reorder the same items over and over again. Also, it doesn't remember your cart if you interrupt the shopping conversation, go to an app and come back to order again. So you have repeat the whole process.

Alexa is handy if you want news, weather or sports update, but it really needs to step up its UX for voice purchasing.