My 5t is fine
I'm one of those who got the 5 when it came out. Super fast and everything works fine with the.14 release.
The camera is just about OK - it needs OS - and the 5T doesn't have it either.
I can't see myself spending another £500 (I got the 8/128 model) just to get face recognition, a wide angle camera and a slighly bigger screen.