Adjustment of Status - I-485

Anyone who had interview from cincinnati got approve on the spot or held under review? How long is the waiting time? Thank you very much.

I had my interview yesterday june 28, 2019. I thought the interview went well. The officer only ask about the information on the i485 form and then ask only how i meet my husband and when and where is the proposal. At the end, the IO ask me to sign the i485doc. Told us everything is okay and explain to us what is a conditional green card is and when to apply for roc then gave me a paper that said held for review. She said she need to review our docs because she didnt have enough enough time to go over them before our interview and then said to expect a decision within a month. I dont know if we were approved or not. And also officer didnt ask for any proof. I ask her if she needs anything( i have 2 folders of evidences) and offer her to look at them but IO just told me "no need" just give anything we want to give.

 My timeline is as follows:
Dec 12- submitted i485, 131,765
Dec 19- NOA
Dec 23- biometrics appointment notice for 485 and 765
Jan 11- biometrics at cincinnati
April 7- rfe for 485 affidavit of support
April 19- submitted rfe response
April 23- rfe response received
May 8- ready to schedule interview
May 17- interview scheduled
June 28- interview day