The last few flights for me were domestic ones out of YYZ, I noted that there's a lonely L3 mmwave scanner at the far side center of T1 domestic security, but so far I have never seen it in use. I do appreciate being able to walk through the metal detector without having to take my shoes off, and once I forgot some change in my pocket, so they let me put the change in the tray and walk through again! The few CATSA people I've dealt with were polite and professional, didn't hurry me through the WTMD when I waited for my stuff to go into the X ray scanner, and waited for me on the other side to gather up all my belongings before doing what I consider to be a very thorough bag search (I carry a lot of gadgets with me), even helping me pack everything back into the bag when they were done. Didn't even look twice at my CPAP machine! (I fail to see why the fascination TSA has with CPAP machines and having to swab them EVERY time). Oh, and I can lock my checked luggage!!! Overall a more pleasant experience in Canada, though I am concerned when TSA tries to impose their methods on us and the aftermath that usually occurs as it did post "underwear bomber" early this year.

I don't do transborder to the US from YYZ, so I can't comment on what it's like there. Most of my USA travel is directly out of BUF, which has been pretty reasonable prior to the nudeoscopes being implemented.