Everything would have been OK had traffic not come to a dead stop for over half an hour on the way to YUL this morning. Arriving with only 35 minutes to departure YUL-DEN, the self-tagging machine already did not accept my pre-printed boarding pass, and the helpful agent said there was no way I was going to make it. Enter NEXUS... and 30 seconds later (as opposed to 30+ minutes) I was in! This one experience alone made the card worthwhile!