Many DMM features are not used, but your needs might change over time. I just picked up a 199 count Heathkit IM-1212 (with Nixies) and got it all fixed and cleaned up and it's surprising how much you can do with it, haha!
Honestly, I don't use my Brymen handhelds much these days, as I have nice bench meters and I do like the 121GW better when hunched over the edge of some equipment due to the nice size & shape. I did use the 15V diode feature a few times recently. Personal taste and experience perhaps.
I would like to briefly weigh in on the Chinese topic since it seems to come up a bit. First of all, it's disingenuous to put words into people's mouths and call them racist or phobic when they say they don't like Chinese products or to lump everything into "Asian". There are certain facts about how Chinese manufacturing functions under Communism and it benefits that ideology. That is really the beginning and end of it for me personally.