The FLuke 101 hit my hot little hands yesterday. The small size is perfect. It meets specs easily with the DMM Check plus. Down side is the crappy pvc test leads. Waddya want for $40?
Do you actually need its higher safety ratings? If so, it's a perfect little meter. If not, and only be used as an electronic meter, Sanwa PM300 is a better choice. Dave has it on sale for $47 (AUD 65) at this moment.
I have the PM300, and I had the F101 as well. I would say the PM300 is better built in terms of polishing details, and the F101 is better built in terms of robustness.
Both can't measure current, but that's expected for the size and safety ratings.
FYI, if an ultra thin pocket meter is desired, Sanwa PM3 is also an option. It's not for mains, but if you only do Arduino stuff or you need a tiny meter in your glove box, it's not a bad idea. I have it in my computer bag, along with my Analog Discovery and Owon VDS3102L. Unless specifically requested, those gears are all what I bring to debug boards for friends at their location.
No real need for the higher safety ratings. Low resistance measurements for a field replaceable unit--15R good, 30R bad and Less than 1R for thermocouple good, over 1R bad per service manual. That is the limit on 'electronics" and the 101 works just fine. Possibly DCV and checking mains to make sure outlets the equipment in the field is plugged into are working. I have a very short service window-check the FRU-bad, replace. If the equipment still doesn't work, replace the equipment, no time for dinking around. I have no need for current with the meter. I didn't really want a real pocket meter, I like the leads unattached. To me, they also feel a little cheesy but my only experience with a pocket meter was a Radio Shack pocket meter. The robustness is a plus, it will get jounced around in my toolbag. I wanted small but not necessarily as small as the Sanwa.
There are a ton of options out there, it comes down to need and personal preference. It's a Fluke, the 101 does what I need, it's priced right, it has overall good reviews and Amazon prime had it in the mailbox on Saturday after ordering Thursday night. Besides, if it doesn't last, I will just bug my boss that I need a new meter and will let the company pay for the 2nd one.