I applied in early October, was referred via USAJobs about 1 week later, and then was contacted for an interview in late November. I came in for a second interview less than a week later and was offered the position the following week.
The interviewers were extremely kind and made me feel very comfortable. I met directly with the CFO who spent significant time getting to know me and my goals which I really appreciated. Overall, the interview experiences with GSA, even if I had not been offered the position, I thought, were fantastic and really reflective of the work culture of GSA - open, interactive, and supportive.