It took several tries before I was able to get my IOS upgrade today... just be patient and keep trying.
The update is nice, still the same basic core functionality so it really isn't a big deal as far as normal use.
The new 'look' - is fine, sort of a yawn... especially since I can get choose from hundreds of new looks on my android device at any time. I guess for IOS - a new look is a big deal.
Settings are easier to get to... but mostly just a rearranging and redecorating of what was already in IOS.