As for the firmware itself, there are plenty of users who have reported lower energy use along with the same or better poolside hashrate. So from anecdotal evidence there are many people who use it and are satisfied.
Some people have seen no benefit or even worse results, even in the same farm. So at a guess if the equipment is already at it's limit there is very little else that can be done.
Would I use it? No, but that's me and my choice, I would not stop anyone from using it if they felt it worked for them.
-Dave
My point of making this post was not to bash on Braiins OS as a firmware or it’s efficiency. It was to raise awareness about about Braiins’ misleading claims and deceptive practices. These are some pretty big issues ignored by the mining community as we tend to have a “every man for themselves” attitude - which is normal but personally I would try to stop people from using it, or at the very least, hope to get an answer from Braiins.