I got an interim EAD while I am waiting for my EAD to be processed

I got an interim EAD while I am waiting for my EAD to be processed. I filed it online hoping that it will be the same processing. The thing is that if you e-file online, you have to wait for the appoval of your application. In short, it won't do you good if you're in a hurry getting that permit. They give me 90-day interim EAD because I have a pending I-485 application filed in the San Francisco District Office. I will suggest to go to the office instead of mailing or e-filing it. But it will be our responsibility to know first what are the requirements in order for us not to get denied or go back again to reapply.