As far as downtown hotels go, Calgary has been playing catch up for a while. A few years back it was quite difficult getting rooms downtown. There was a case where the president of Mexico (and his group) came through to Calgary but did not stay overnight because they could not get a room booked. Usually hotels can always shuffle people to make room for someone important, but the occupancy was so high that they couldn't work it. He and his group end up staying in Edmonton instead.
After the Dorian, we'll have seen 5 new hotels go up in the core area in the last 3 years. (Marriott Fairfield suites conversion, ALT, East Village Hilton, Marriott Residence Inn, and the Dorian). That'll help get us close to being caught up.