Depends on the service center I guess. Just keep on top of it - check your mail, sign up for USPS's informed delivery (where they show you scans of incoming mail), get your receipt numbers, and check USCIS's site every so often.

I sent in AOS lately and it took them 7 weeks to charge my credit card and issue me receipt notices. Yeah USCIS is a clusterfuck that got itself stuck into a situation where applications are already crazy expensive, they got sued when they tried to hike the prices and get rid of free EAD/AP for AOS, got sued, and play chicken with furloughs every time budget negotiations start. They really need to do some cost cutting and migrate everything to online submissions, not just the couple of forms they do right now.

They should also definitely put in some kind of automatic extensions for DACA because those 180 days would also afford them leeway.