Custom Kernel Suggestions - Nexus 7 - 2013

Hello there!

Some noob questions here:

a. Is running a custom kernel worth it? (I don't intend to do any manual tweaking using any Kernel management app.)

b. If yes, which is the most noob friendly kernel for Nexus 7 - 2013 - something that works well - out of the box.

I am currently running Franco's Kernel R7 on Stock KitKat 4.4 with its default settings - been able to do it using Wugfresh's NRT.

It seems to make things slightly smoother, has neutral to positive impact on battery and the tablet has above average Antutu score ~ appox: 21K.

I would like to learn from the experience of fellow Verge mates.

Thanks in advance!