Rushed last Sunday, 11/19 for the 4pm afternoon matinee. Arrived around 11:15am for the 12 Noon box office opening, and was about 14th in line -- by the time Noon arrived, it had stretched around the corner.
Important thing to note: the show now seems to offer two tiers of rush -- $39 for Partial View, $55 for Full View., which you choose when you get to the window. I opted for the $55, which were Center Orchestra Row U - a great view, I really appreciated elements of the scenery and lighting design in new ways being a bit further back. That being said, I know other folks on here have gotten the Partial View rush and been pretty happy with the view / reported not missing much.
The show was in fantastic shape, btw -- all the principals were in and on fire. Eva in particular was extraordinary, and Jon Jon continues to find so many shades of malice and humor in the Engineer. Definitely go and take advantage of this pretty easy rush before I presume it gets busier in the holidays / the show's final weeks.