I took the oath on Jan 06 (Thursday) and received the certificate today (Jan 10, Monday), literally less than two working days.
Looks like officers do work at the Scarborough location.
If you refer to the approved status in MyCIC, it takes about 3 days in my case. If you refer to the Email informing you there is an update in your account, then 2 days. The preamble is that I live in the GTA.
Me too, landed on 11 May. Mine was updated 2 weeks ago, approved 10 days ago. Received card last Thursday. But my partner's application is still not updated at all.