I upgraded my iPhone 5 and iPad 3 to 6.0.1 and so far so good. But I don't think this new release does anything for the battery problem. The iPhone 5 still drains way faster than the iPhone 4.

I think Apple should have just come out and said that this is the case. Don't expect the same battery performance because the faster chip and larger screen burn more juice.

As for WiFi, I have more bars now sitting in my bedroom. So if the tweek was to make it look better, job done!