It depends on the quench current, but yeah, maglev, hoverboards, much cheaper MRI machines, less reliance on the diminishing helium reserves, lower cost experimental fusion reactors and particle accelerators too. That last could lead to progress speeding up in that research as more people can try stuff. Lower cost for power transmission would make renewables that are geographically limited more usable. Also coil and rail guns would probably proliferate... If the quench current is high enough you could see handguns that charge on usb-c and are not legally firearms in any nation I'm aware of. Quite a disruptor.