Anyone regretting Pontus 2 firmware upgrade

I was notified of Pontus 2 upgrade for April 1st. I checked on Audiogon what people were saying of Pontus upgrade, not all reviews were positive. Most said they enjoyed improvement. More detail tighter bass. 

Some claim bright and glassy with loss of bass, also stating not as musical. Reading this stopped my plans of the upgrade for now. I’m not looking for a more high fi sound. My system is all tube and very detailed as it is and very happy with Pontus in second system. Is this upgrade reversible? Some brought up “brick” I have no idea what that is but understand it needs to be sent in for repair.

I would like to do the upgrade but until I understand what I’m in for I plan to hold off on update. Does anyone agree?