Adjustment of Status - I-485

Here is my experience as Dallas filler

PD : Fab 16, 2017 Dallas field office Married to USC
Send RFE : March 25, 2017
Got the Combo card : June 01 ,2017
Sent renewel for Combo card : March 12, 2018
Change of address : April 23 ,2018
Interview was schedule : May 24, 2018
Got the interview letter : May 29, 2018
Interview date : June 28 ,2018

Interview was early in the morning , My wife and I got there few minutes late , cheacked in , got called right away with no waiting at all .
The officer who interviewed us was the field office director .
The interview was diff then I thought it'd be tbh , no deep questions
He asked us our full name and Dob ,where and when did we first meet , When did we get married , Then he moved to the yes no queations and basic questions from the application just to make sure eveything is correct .
He asked if we have any documentation to show and we hand over our file :
*Car insurance
*Car title together
*Renters insurance
*Apt lease under my sponser's name with both of our names in it
*Dental account together
*Joint tax return 2017
*Bank acount together
*Electricity bill
*Internet bill
*Photo album
He looked at the pics and thats about it .
He told us to wait for a repsond and that we might get one by the end of the day and if not he still have 4 months to decide .
I felt weird after the interview like it was too simple my wife thought it went smooth .
3 weeks later case status changes to Case approved: July 19 ,2018
Card was mailed to me: July 23 ,2018
GC in hand: July 26, 2018

Its been almost 18 months Since my Pd. Dallas field office is slow ! in general Tx cases takes much longer than other states , but it is what it is .
Good luck you all , and live your life to the fullest with or with out the card .