Is there any U.S. Repair support available ?
The big Korean manufacturer's Samsung and LG sell 10s of thousands of robots with no real repair capability here. Samsung has a useless contracted repair facility that can repair almost nothing. I know as I'm a previous Korean machine owner.
I also once owned an excellent Electrolux Trilobite Vac. When Electrolux went out of business the last time, and the machine broke, I was out of luck.