How much time to wait for approval/rfe?

Mine is still case received and it was filed April 11, 2016 as regular processing. I wonder the how long to wait until processing time is completed?

Also, what is latest time USCIS provide approval? It has been 5 months now

Even mine too. I got news that the California Service Center has sent/sending all applications to Nebraska and the slowdown is due to this as Nebraska is unable to handle such volume. I understand its quite frustrating though.

Mine also same ,same status since May 11th. Can anyone help me how long it will take to become approved.

Thanks - I wonder what is the chance to get approval even for application during 5th or 6months waiting time? Anyone can share/comment?