When we were at POR a week ago this was our scenario....
Called Bell Services about 8:15. They came at 8:30 and took our bags and us to the area right beside DME check-in. We waited about 2 minutes, got our boarding passes, they took our luggage and tagged it. They weren't sure if we should take the 12:00 bus or the 12:30 bus. Said to check back later or they would get a message to us. I had spoken to dh earlier that morning and he told me that he had had an issue getting on the bus earlier that week. He never got a departure voucher (neither did we!). So, when we went back to leave I asked someone and they directed me to Bell Services. They gave me a voucher and seemed to be surprised that we hadn't gotten one on our door that morning. The line at that time was incredible to check-in. Seems some had been waiting for over 30 minutes. And the line to get on a bus was pretty long also. But those of us with no luggage were able to get on the bus first! And there was a huge group of people checking out at the same time.
So, my advice would be....check-in as early as you can. We also had a 3:00 flight. And get to your bus area early also. But, it was a good experience all the way. I wouldn't hesitate to use it again. And will be..twice more before the 'big party' ends in '06!!!
