Regarding the speed of the new system: on the flight from LAX to YYZ my co-worker whose upgrade cleared was in row 2 and I was in row 25 because mine did not. Before we boarded I told him to go ahead when we landed in YYZ because we were both trying to get an earlier flight to YOW and I didn't want him to have to wait for me and maybe miss it. He wasn't paying attention and he went down though regular customs hall and re-cleared security ... we ran in to each other heading to the gate for the YOW flight, where he wondered how I had managed to get past him!

So it saved me however long it takes to disembark 24 rows of a 767 ... maybe 5-10 mins or so? If there had been a NEXUS machine in that new area and I didn't have to stand in line it would have saved another 5 mins at least. For someone without NEXUS at all who had to go stand in the regular YYZ security line it could have saved quite a bit more time.

Saving the hassle of the security line was a major bonus as well, regardless of time saved.