Installation alone was phenomenal. This is probably largely downstream of NYC allowing a sprawl of overhead wiring in many neighborhoods, but I was deeply impressed by an installation team building out an entirely new fiber line to our apartment within less than 48 hours of putting in the order, for free, climbing through backyards and drilling exterior walls and everything.
They did physically cut the existing Spectrum cable to the apartment for absolutely no reason, so maybe playing fair competitively isn't quite there yet, but all in all, the dynamic between the two providers seems to create very good outcomes for end users there.
Of course, if your landlord does not allow any of that (common if you live in a larger building in NYC) and you're stuck with a monopoly, your experience can be miserable, so this probably really only works as a strategy if you enforce access and accept overbuild as an outcome.