PR App through Seattle - anyone have info?

I have no personal experience with Seattle; the following info is based on reports posted by others in the past.

Some Americans who had their files transferred from Buffalo to Seattle still had very prompt timelines, virtually no difference than the more quickly done cases that stayed in Buffalo. It is apparent that these cases were transferred to Seattle simply as a caseload sharing measure, albeit the persons who have reported this were located on the West Coast.

Some Americans who have reported being transferred to Seattle had cases which involved an interview request. At least in terms of reports I have seen in the last two and a half years, the former (simply caseload sharing transfers) appear to outnumber the ones transferred for an interview by a rather wide margin.

I can recall one who reported being asked for additional information after the transfer . . . but the additional information requested was of an obvious sort (I do not recall specifically what it was . . . the idea that it was the additional family info form comes to mind, but I am not sure), so it was not apparent that that case involved anything other than a caseload management transfer.

In any event, there have been plenty of reports that it does not significantly change the timeline, is no reason to be concerned . . . unless there is some underlying reason why an interview might be requested -- interviews for Americans who are sponsored partner PR applicants is very, very rare, so a request for an interview, for an American, is an indication that something substantial is lacking or is questionable in the application. But again, there are enough reports of routine transfers to Seattle to not be alarmed or concerned much.