Brave isn't perfect but has a lot of good to offer. Dozens of privacy researchers and engineers have contributed to its development, with ongoing contributions from many.
The adblocker is second to none in several areas. It's the most efficient and lowest-level full adblocking software ever developed. The feature set includes support for uBO syntax and most scriptlets.
Other unique privacy features balance usability and sophistication.
The open-source codebase (5.7M+ lines of custom code) is mature and actively maintained. The development on GitHub is very community-oriented.
Chromium updates are quickly pushed through the pipeline, usually 24 hours for minor updates and ~7 days for major upgrades.
It comes with unnecessary features, but that's true of all major browsers now. Plenty of people complain about bloat, inefficiency, and gratuitous features creeping into Firefox. The same is true of Vivaldi's complex browser bundled with a VPN, email client, calendar, feed reader, tasks, etc.