For me, that is an extremely low barrier to cross.
I find Siri useful for exactly two things at the moment: setting timers and calling people while I am driving.
For these two things it is really useful, but even in these niches, when it comes to calling people, despite it having been around me for years now it insist on stupid things like telling me there is no Theresa in my contacts when I ask it to call Therese.
That said what I really want is a reliable system I can trust with calendar acccess and that is possible to discuss with, ideally voice based.