Well since I have only ever used HTC smartphones, I have limited perspective.
I do know that with my DINC, I had Froyo 1st. Every OTA bleeped the device, used warranty 5 times before contract was up. I hated Gingerbread, it seemed to slow, glitchy.
After concluding the 2 year commitment to Verizon, I dropped the data plan and deactivated the DINC. While deactivated I rooted the DINC, found CM 9 ICS, tried several roms. The DINC works better than it ever has before!
The DINC was reactivated on P+ and worked great. It is now my backup device for the M8. So now I look for an ASOP rom for the M8....................CleanRom is excellent, BTW, but it is sense based. It is also faster than the stock OS the M8 came with. What was glitch is no longer. I have read that ASOP does perform better than sense. My experience with the DINC backs this up. But if DU's not good for the M8, I will just go back to CR. I'm gonna give it a go either way.
What sound driver is your rom using? I am gonna assume that BoomSound and the Harman/Kardon drivers are not gonna work..............