I will say, the branding was actually pretty clever. I was a Windows Phone user back when it first came out, and the general consensus was that it was clearly a code name and they were going to find some bland corporate name for launch.
Actually naming it after an interesting AI character-- and as I recall, they used the same voice actress as the games did-- was one of those rare occasions when it felt like a trillion-dollar company let someone express their passion and soul.
Of course, by the time it made it to Windows desktops, it was already past our peak hype for Siri and Alexa, so all it could be is another faceless Wrong Answer Machine.
The only thing I ever used it for was a persistent geofenced reminder: take the perishables out of the back seat when I reached my garage. I suspect programmers were never the natural audience for voice assistants-- I'd rather type and redact my message 15 times before submitting it, and search with keywords rather than natural language.
What Microsoft really needs to do is to return to 'peak-Windows': Windows 7
To discard all that crappy stuff they've released since then, and to get back on the right track.