I was there yesterday (3/7, Monday). It was very crowded, probably the most crowded I've ever seen MK. We entered about 10:00am, lines at the turnstiles were long. I think they were pushing through the ticket tag, I saw cm's just pushing the buttons if they errored. By noon, Space Mountain was 55 minutes. Good thing we got fastpasses about 10:20 for 11:10 to 12:10. Fantasyland was wall to wall people. Snow White even had a big line! The friend I was with said it was as bad as summer.