Adjustment of Status - I-485

Hi all here is my experience :
07/24/15 package sent
08/24/15 online update case received
08/28/15 checks cashed
09/04/15 bio notice for 09/23/15
09/23/15 biometrics taken
10/15/15 interview scheduled for 11/17/15
10/26/15 approval notice of EA and AP
11/03/15 combo card in the mail
11/17/15 interview day at LA downtown building :
arrived at 11.30 and checked in,app was at 12.15pm at around 1pm an IO (young lady approx in her early 30s)called my name,we followed her trough a long hallway her room was in the end,she introduced herself and swore us in.
She asked for our ID'S and said she'll hold on to it till the interview is over.Then she asked my husband(a petitioner)his full name,dob,home address,phone number.Then IO asked me is your name....,is your dob.... etc,after than yes/no questions.The she asked both of us date of marriage,how and when we've met,if this is our first marriage(my second),so she asked for divorce documents,if our parents know that we married.After that she asked to see our evidence of marriage, we gave her bank statements,cell phone bills,Internet bills,gas,water and power bills,Costco cards,debit cards,checking book,car insurance, car registration,car title (we made copies of all originals),then she asked to see photos but exept wedding ones,we showed her a photo ulbum and she asked to specify pictures when we dated and pictures after marriage,we had about 100 pictures whith us,she made copies of 2 pictures (from last Christmas and whith our parents). Then IO typed something on her computer and said that she'll approve our case,she gave me a paper that said I should receive a card in a mail.That was it!IO was really nice,interview lasted for about 20 min.
PS:we didn't have a lease together,so we explained that I moved into this house a long time ago and had a one year lease after that is month to month,IO was ok whith that.