I cooked for a family in part with a consumer-grade, Walmart-sourced Panasonic inverter microwave oven for a dozen years until circumstances made me get rid of (donate) it.
No issues ever. It was reliable, had some useful programming options (that nobody ever used but me, but it had them), and it did a good job of microwaving food in a consistent and predictable manner.
(But that's not an indication that inverters are reliable, or that consumer is the same as professional, or that Panasonic is good, or of anything else really other than that anecdotes are anecdotes.)
No issues ever. It was reliable, had some useful programming options (that nobody ever used but me, but it had them), and it did a good job of microwaving food in a consistent and predictable manner.
(But that's not an indication that inverters are reliable, or that consumer is the same as professional, or that Panasonic is good, or of anything else really other than that anecdotes are anecdotes.)