Lesson learnt, Sound matters more than UI and OS experience. :J
MiUi rom has much better audio settings baked in. And I am kind of an Audiofile. So I reverted to Adria ROM. And have been enjoying the great Sound quality since.
So the latest news is that I'm back on Adria ROM. Back last month, I used Mokee Lollypop ROM for a while. Then because of deteriorated battery life I shifted back to Mokee Kitkat.That didn't last more than a fortnight since I noticed stability issues. So I moved back to Lollypop. Except the battery life, things were good. But I found audio to be performing not quite good.