I use this kernel since version 7 (now version is 9 and developing was stopped) and I think that this is the best kernel for this device, long battery life and good feature. Before I used this kernel on stock rom then I decided to try cyanogenmod (I've started with 10.1.2, so no long time ago). Now the device is faster in some operations and slower at some points but anyway I would like to keep Cyanogenmod because it offer a lot of feature that stock rom don't have.
I'm also tring to win a Nexus 5 with androidcentral! I'm joing also for this reason
I hope to see a 4.4 cyano on my Nexus S!