Employment Based Greencard

Timeline (EB2)

5-26-2017 ----Sent Package I-140, Form 485, form 130 , 1-175 (concurrent filling)
5-30-2017-----Document received
6-5-2017------Fingerprint fees accepted
7-27-2017-----Received Biometric Appointment by mail
8-10-2017-----Biometric done
11-7-17--------EAD Card (Employment) sent
11-12-17-------AED Card (received)
3-28-18---------Request for Evidence (RFE)(for I-140)
6-5-18----------Replied to RFE
6-6-18----------USCIS received RFE response
7-17-18---------I-140 Petition for Alien worker approved
8/1/18---------I-485 Case was received at my local Office
8-2-18----------Case was Transferred and a new office has jurisdiction
8/8/18---------EAD renewal application sent
9/24/18--------EAD Approved and card is being produced
9/27/18--------EAD Card was mailed
9/29/18--------EAD Card was received
10-25-18-------Case ready to be scheduled for an interview for an interview
10-29-18-------Interviewed Scheduled for 12/3/18
12-3-18--------Completed Interview (details below)
12/4/18-------I-485 Approval Notice
12-7-18-------Card was Picked Up by USPS
12-8-18-------Green Card was delivered

The interview took about 20 minutes. IO was really friendly and professional, she asked of my ID, Sup J, Employment letter, I-94, when last I entered the country, birth certificates for the whole family (Wife and 2 kids) and finally my wife and I, all the yes/No questions in I-485 application.
Then she said she will approve the case before the end on the day since our case is current. I took all the document I could lay my hands on, but at the end, IO asked just for a few (its better to be prepared than to be sorry)
If you are still waiting, I encourage you to hold on everything will be ok. The timeline from this forum will help you keep everything in perspective. All cases are different, some fast, some slow and some really really slow.
Wishing You All The Best.