EC HNL to ATL Worth It?

Booked on the A330 for this flight. Wife and I are booked in seats 24A and B. I have no status with Delta. Is it worth the additional $119 to upgrade to Economy Comfort and what extra amenities will I enjoy? Delta's website is rather vague on this.

I apologize if this has been answered before but I could not find a previous post.

Thanks,