Two more items to add to this:
1) I have now also noticed that "AirDrop" does not work consistently. I went on a birthday weekend with my wife and tried to send photos between her phone and my phone, then my phone and her girlfriends phone, then her phone and her girlfriends.... all different permutations and they all failed. Tried using different wifi networks, etc..... So to me, it just looks like the inter-connectivity features of iOS 8 are a huge FAIL. Mirroring is still not working for me, even after updating, rebooting, etc
2) Don't know if you caught it last week, but one of Apple's lead developers posted a blog post about how he thought Apple was sliding downhill fast and basically creating crap code..... He even said what I said in an earlier post that "Apple's whole premise is that it just works.... and this is no longer the case". He said he thought it was due to the release cycles being too fast trying to keep up with product releases.
WAKE UP TIM COOK!