I updated to iOS 7 and it's different, but not causing me any problems. I rather like the interface. I also have a iPhone 4S. Ordered a 5S at the end of September; we'll see how many weeks it takes to ship. In the meantime, my 4S has signaled its impending end via a clouded screen and no sounds whatsoever unless I have the phone open and active. So I miss all my calls, texts, and emails.
Also, my 'net has been down for 3 days. I've resorted to Starbucks, which this afternoon is filled with young girls sitting together at tables, staring at their phones, and
not drinking coffee or buying anything else.
Finally scored a table though, and an outlet as well! Yowza!