I see the AC crew rest in use often on the AC flights from BDL to YYZ on the Dash-8.
Interestingly enough, the airport just south of BDL, HVN, is only serviced by 6 flights per day, all 6 flights are on US Dash-8s to PHL. They do not have a crew rest in place for the flights.
My problem is many of my TATL flights are via PHL or YYZ, so I seem to always end up on a Dash-8 before finding myself on a 767........regardless of carrier....hmmmmmmm