I’m home right now. Will be until just after NYD. We have an on-demand at the house and also a gas one in Australia. Both work just swell. Don’t have to wait when other take a shower for the water to heat up again. I think you’ll like it. As I mentioned, get a BOSCH, Home Depot. Great warranty.
We installed an early gas tankless heater in our Los Angeles house about 20 years ago. It worked fine supplying two bathrooms for the next 8 years we lived there.
It really came about because we had no place to legally install a traditional tank heater after a remodel adding a second storey.
The tankless heater installed in the old attic space, which also ended up having short pipe runs to the bathrooms and kitchen.
I’m considering installing one here in AZ, but with a solar main heat source and the tankless only as a backup.