I will be using it and doing some tests in an area that actually has cable Internet (though spotty, and until very recently was limited to less than 20 Mbps up, no matter how much you paid).
But you have to realize, when you look at the $600 initial cost and $100 monthly fee—this will bring 100+ Mbps down and 15+ Mbps up to so many places (even in suburbs) where people couldn't get more than 10/2 or so for any price.
I already know a few people who don't even live in rural parts who would happily pay triple just to get off their junk DSL or flaky Cable connection, even with Starlink in beta. They are already used to spotty Internet, so Starlink is a massive improvement even if it's spotty (which it hasn't been, according to these users).