Hubby and I both applied Feb 23rd.
He is Canadian only and got an email on April 5th to make an interview appointment. He did so for the soonest time at YUL. May 16th.
I have not heard anything yet, I have dual UK and Canadian citizenship.
He says when he gets his he will drop me at the border as foot traffic and go through the Nexus line without me. Hahaha! Well at least I think he is joking.