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.