No doubt the songs are catchy. But the hype will soon fade and It won't linger long unlike his golden oldies. Yuvan's tracks remind me of his own composition. Also too much western style. May be the movie demands that. In short, the songs are good but nothing to brag about or exceptional. I still feel he was the best in 80's and early 90s.
I think the songs will feel to be ordinary especially for Malayalee listeners as Ilayaraja was busy recently in Malayalam with Sathyan Anthikad's films, and the background score of many tracks of NEPV much resembles his recent tracks in Malayalam.
Heard couple of songs casually, but not much impressed yet, don't know if opinion will change later.