My timeline:
4 April 2017  - applied online for EU and non- EU as joint application, we didn't send our passports . only  council approved copies.
4 April 2017 - received case ID by  email
20 May- emailed 
EuroBiometrics@homeoffice.gsi.gov.uk   to ask  for  biometric letter, but they replied in 1 month  when i have already   received my letter on 10  of June.  I asked them  for COA which they  send me in 3 days. I guess without asking  they  will not send me one (can only be my guess)
1 July 2017- checked my  reference number  and it said Decided, after  nothing came  within a month I tried to  call 03001232253 5 times every 5 days but noone called me back, then i  asked my EU husband  to  call and he  got reply  from  them  the same day  that  they  have error  on the system and our status Decided is not  correct (strange they  didn't tell me  this  - maybe because I'm non-EU? ) . I  emailed 
ukbacustomercomplaints@homeoffice.gsi.gov.uk  but i  received  reply in 1 month  when i have got the documents already
Couldn't track my  number anymore all July-half August as  they removed it. but then on:
16 August:  our case ID tracked again Decided
23 August: we  received a envelope in our postbox  on my EU husband  name with his PR and 2 letters  that  we received PR and supporting docks. For non-EU letter stated that i can apply for British passport in April 2018 which is one year  after i sent the  docks to  them.  
30 August : I  received  Non-EU PR via DX courier service (strange they dropped all our supporting  docks and PR for EU just in postbox but for non-EU  they  sent it as "special courier service")
so nearly 5 months.    
Guys, 
thanks  all for  contributing. My advice- keep calm  and  don't let Home Office stress your life
 P.S> don't call any paid  line - waste of money and time, noone will give you  any info  unless 6 months passed.