If Tesla is any indication for the quality of products from 'Musk' companies over time, I am also skeptical. They went from high-tech, high-quality, to 'maybe everything will be bolted down correctly' and quietly removing features while acting like they are doing you a favor.
I'm sure the first people into Starlink will have excellent service at spectacular prices. The Musk fanbois will spread the word for free. Then, once enough market share has been captured out in the boonies, the quality will slowly be reduced until you have something comparable to DSL in terms of speed, bandwidth, response times, and data caps - and people will stick with it because, by that point, the other satellite competitors will have died out.