My previous experiences on iOS upgrades tells me to stay away and keep 5.1.1, but curiosity tells me to upgrade. I'll probably get a new phone soon anyway, but don't want to slow my current one down to a crawl in the mean time. In addition, I wont be able to get some of the new features anyway since its an older phone. Thoughts? For those upgrading today,let me know your 3GS iOS6 experience.