After you file

I appreciate the outline but I'm wondering how much longer I can expect this delay to be, given my case is pretty straightforward, and others' experiences with delays for straightforward cases. For example, is almost everyone's federal refund currently this delayed after e-filing? If not, is it possible the IRS made a mistake after getting confused by the amended tax return I mailed a day after e-filing, and the refund is now stuck in "processing" limbo?