I did on-line check-in for the first time for this last trip. I had no clue when I did it how convenient it was going to be when I arrived! There was an "on-line check-in" line. We went straight to the desk, the CM asked for my id and presto all of my package was ready! I seem to remember having to wait about 30 seconds for something to print, but beyond that, I was at the desk for no more than 5 or 6 minutes!