Hello PM1983,
My husband application state that processing started on July 21st, 2015 and on September 14th we received a letter stating that he was missing a police certificate from Montenegro.
He work there on and off for 1 year and we completely forgot to submit that with the application. The advised for him to get that from our own country but after 3 weeks of trying in vain, he went straight to Montenegro and got it after 1 week. So our application was delayed because of that for 1 month! Vienna confirmed they received everything on October 22nd 2015 and we haven't heard back since.
I guess we are only at 7 months mark which isn't too too long but when you see some people getting approved within 5-6 months it makes you worry. Biggest thing is that I want him here for Christmas! I have to work so I can't travel to be with him :s
If they didn't ask for additional doc by now, you are probably all good
Good luck!