Well I have seen much difference for one ICS actually works for a change. I had so much misery with 4.0.3. Things force closing stuff lagging like no one's business and having to reboot my phone like crazy. Battery life use to be flat out horrible in 4.0.3 but now the interface is smooth some of the more demanding games do not lagg. Lunching of apps does not take 15 minutes. Yep and battery life is much much better I am at 1 day and it is at 50 percent down.
I personally really like it and will wait for the custom jelly bean becoming nice and stable before I update.
Is it bad that I like code???