Besides the burn in, there are still other issues needed to be considered, such as system synergy and weak link in the system. The new firmware may not be the weakest link in your system. Or, it may just be not suitable to your system. And, if you don’t try you will never know. I would say "Take this opportunity. It is free of cost. :)
My highest appreciation to Denafrips and Alvin."
Totally agree! I have seen enough positive responses not to be tempted to give it a try. The bad news for me is that my T-Plus is the last one in line to get updated, the good news is that hopefully by then they would have already learned and come up with a better/improved firmware :)