Flir took back the DM93, no issues there, got another one and while the buttons work fine, the accuracy is perhaps less than ideal for a 40,000 count DMM. I can see why the default is 4,000 counts. It meets spec, but some ranges are just barely within tolerance despite this being new and recently manufactured (approximately 10-20 counts high or low at the top of the range, depending). They want $300 to have it NIST calibrated and they will not give out the calibration procedure.
Otherwise, the DMM is OK, and the dual display is nice for MIN/MAX/AVG functions if that is something you need. As some Youtube reviews have pointed out, if you take it out of full Auto AC/DC mode, the display updates VERY quickly and that is unique in my opinion.
These are on sale direct from Flir or via their ebay store for $150. It's totally worth it IMHO if you need something this offers.
Support was nice, they were willing to replace the DMM again if I wanted to try that. I'm probably going to keep it.
It works reasonably well with Eneloop AAAs, but it displays 2/3 on the battery gauge right out of the charger, so not perfect.