Gps and wifi problems etc.

Anybody having issues with their gps? I have an iphone6 and ever since the iOS 9 upgrade(s)my phone has gone to sh*t. No gps, barely any wifi connectivity, distorted phone calls, iMessages not being "delivered". I've noticed others have had many of the same problems but not the gps issue, anybody notice there's is not working either? Come on Apple, get it together!