Another new member here. Applied at the beginning of February, conditional approval Feb 12, interview today at SEA (took about 20 minutes), and before I got back to the office I had an email from GOES that my membership was active.
The CBP officer that interviewed me was very friendly. She said that the program has become quite popular. Her calendar for today was booked solid for the whole day. No kiosk to practice on, through, she walked me through a powerpoint with the various screens.