Processing time
You can check the latest processing time provided by the Department of Home Affairs right here at https://www.homeaffairs.gov.au/trav/visa-1/300
What would be the cost of applying for your Partner Visa subclass 801/100?
To apply for the subclass 801 or subclass 100 application, you won’t have to be any addition VAC or Visa Application Charges.
The Government fees you give initially cover the two stages of application subclass 820/801 and 309/100.
In general, you can't get a refund for the partner visa fees, even if your application gets refused or you withdraw the application on your own.
You can find out the VAC asked by the government at http://www.border.gov.au/Trav/Visa/Fees
Obtaining Australian citizenship
After spending your time on your visa, you will obtain eligibility to apply for citizenship in Australia.