The fact that its main 2 gimmicks are a shitty ad blocker and integrated cryptocurrency should be enough of a red flag, honestly. Just use Firefox, people!
I am using Brave on iOS mainly because of its superb YouTube support - It has a built in ad block, can download videos offline and play minimized. Is there any way I can achieve this with any other browser? I would switch immediately.
Correct me if I'm wrong, but i believe that's because it's not really Firefox, everything on apple devices is forced to use safari, all you do with the "Firefox" installation is change the ui.