That Panasonic looks exactly like the one we bought new in 2008.  It's still going strong at a friend's house 14 years later (we moved to a place with an OTR nuker).  I loved that Panasonic for its ease of use.  The cylindrical knob in the center of the panel can be used to set cook time instead of punching in numbers, then just hit Start.  This crank-and-go option is what sold me, but the other feature I used -- perhaps even more -- was the Sensor Reheat.  Place the item in the oven, close the door and hit the Sensor Reheat button.  That's all.  It reheated perfectly better than 90% of the time.  The labeling wore off of that button from so much use!

I have four microwave ovens here. One is a relatively small Danby, which lives in the patio kitchen. Another, the oldest, is a Sears Kenmore, in the main kitchen. Also in the main kitchen is a Panasonic Inverter NA-6515. I have another Panasonic Inverter, new in box, which I haven't yet put into use. Three microwaves being OK, four is sort of a crowd.

I did have  fifth one, another Panasonic Inverter. I returned that to Costco not because of inverter issues, but because it had a door latch issue; I had to slam the door in order for it to start. I got tired of that, found the box, and returned it for a full refund, although the refund amount was less that I expected. Perhaps (since I didn't have the receipt) they gave me the discounted price of one I bought later there. It was also one that I had brought into my last jobsite (2019).  I suspect it was mis-used by somebody at the jobsite while I wasn't present. But it certainly could have been a mfg issue, IDK.

I don't think I've ever fired up the one still in box. As I recall it was discounted at Costco; perhaps too many returns due to operational issues? IDK. I remember the price was very good.

Like I say, the Panasonic in the main kitchen works great, has for some years now. One of these days I'll unpack the "new" Panasonic (it's in my workshop now) and see if it works OK.

And so it goes. Microwave ovens are great... when they work.

OK, after reading all this stuff in this thread, and also doing a fairly thorough Google search on door latch issues (the only problem I've ever had with a Panasonic microwave), I'm probably fixing to move the box with the brand new (that is, never used) Panasonic NN-SN797S inverter microwave from the storage area (really a half bath) into the workshop so I can plug it in and confirm that it actually works.

I'll let you know how that turns out.

Probably I'll use it to pop some popcorn. Waste not want not.

Just heated a cup of water in the supposed "new" Panasonic in the workshop.

Turns out it's not a new one. The mfg date on the back says "March 2002". The model is NN-S762BF. 1300 watts. Which doesn't match the box it was in. No manual in the box, either. Must be in the house somewhere. Or maybe it got left at my last job site.

Anyway, it did just fine heating the cup of water, so it's a keeper. I know it's one of mine because I stuck little plastic labels (probably Brother P-Touch) on each selection to make them more readable in the kitchen.

Oh, and for the one I returned to Costco... I found some very nice videos on-line about how to fix the door latch issue. Turns out the problem is that the metal bracket holding the door latch assembly is too thin, so it can bend over time and stop holding the door shut. Not too hard to fix with either wire or zip ties, but it does involve taking the outer case off and some careful work. Too late for the one I returned, but ... if it happens to the one I still have in the kitchen I'll know what to do.

Bob,

Thanks for the suggestion. I found the full manual online.

Below is a link to it.