I did get a little worried once I stepped into the terminal: I saw a lot of long check-in lines. Thankfully, the Northwest line was basically non-existent, and I was checked in in about 90 seconds. The security line went fast too. The longest part of the process was putting my shoes and belt back on and getting my laptop bag re-packed.
Now I'm just waiting at the gate and wondering where everyone else is. Boarding is supposed to begin in about 15 minutes, but there's only about 10 people here, and the flight is supposedly sold-out.