Depends on how easily it detects early-stage infections.
If it can tell who is infectious and who isn't then it would be the perfect thing to screen people before they go into a "clean" area, e.g., a nursing home, intensive care ward, or manufacturing site.
If it misses early stage potential spreaders then it's not so useful.
I hope they figure this out very quickly and ramp up production ASAP.
At the very least, it'll determine who HAS to be quarantined.
Waiting several days or a week to get test results back is ridiculous.
I don't know if we have enough room to quarantine people that long.