I don't use Brave, won't use Brave, and have my reasons for it.
Brave is Chromium based; a project which is slave to the whim of Google.
Brave integrates an unnecessary cryptocurrency.
I hate shitcoins
I don't trust small crypto projects, and I doubly do not want this to be integrated into my browser. It's a good way to lose your stable crypto-holdings if you have them. (I don't; but I've seen lots of anecdotes about catching malware that subsequently stole their crypto wallets, including any BAT tokens they owned)
Brave does not block ads! It does not 'enhance' your privacy. It just absorbs some ads, replaces some, and blatantly lets first-party advertisements through the filter. That's not ad-blocking
Brave does not protect your privacy. As per my previous point; it does not block ads, it injects it's own right into browser chrome! That's worse than plain Chrome! Your privacy is automatically violated when you watch/view even a single ad.
Brave does not have many benefits above "Ungoogled Chromium" or other competing projects. It just doesn't. Unless you like marketing fluff.
Brave is NOT BETTER THAN Firefox. It's worse; because it's Chromium; which is enslaved to Google whims. Don't believe me? Try to contribute something to Chromium that goes contrary to Google's stated goals and watch how fast you get shot down.
But sometimes...
Yes, Sometimes a programmer does succeed. But only sometimes; and this is usually because they have the clout, coding skills, chops and public reach to embarrass the fuck out of the Google PMs. This will never be you, unless you put an extraordinary amount of effort into becoming a very well known and respected contributor in the OSS space. If you already are a respected contributor in the OSS space, Congrats! You're still likely to be forced to fight a long and protracted battle against the Google nerds to get "Google-Hostile" code changes approved.
Yes Brave cannot make commits to Chromium, but it makes changes to their own repos (well, obviously) and can also accept/reject changes Google makes to Chromium.
In my opinion, Firefox is more of a slave to Google than Brave will ever be because they rely entirely on Google giving them money for the default search engine.
Is Brave's revenue model scammy? Maybe. But at least they aren't Google little bitch.
I don't know how you can follow web development and say Mozilla is a slave to Google. They go against nearly everything Google proposes.
I get it that Mozilla makes money off of Google but in practice they are anything but slaves.
I find nothing morally or ethically superior to Mozilla vs Google. Nothing. As for the browsers, I'll admit I have kept Firefox and ditched Chrome, as I suspect (cannot prove) the former might be a tad less invasive than the latter. I rarely use it now that I have Waterfox. That said I do use Comodo IceDragon, Epic Privacy Browser and Brave...I assume all based on Chromium/Chrome. I'd guess Brave is the most up-to-date browser for Windows 7. It works well when various sites flip the birdie to the other browsers, so I use it.