Automated voice systems that try to sound human but are in fact purely scripted are insanely annoying. E.g. "I think you said 'windshield', is that correct? ... Got it, thanks!"

If you only have 4 options, just give me the old school list of voice options and I'll press 1 through 4, in less time, and being only moderately annoyed.

But a knowledgeable AI system as described in the article - that knows what it knows and tells you when it doesn't - could work great. If it had access to inventory and calendar, it might have worked for you. The question is whether the implementation lives up to the high expectations set by the articles.