TodayTix rush seats

Does anyone have experience doing rush seats through TodayTix? I'm trying for rush for A Parallelogram, so not too worried about the seat location since it is as a small theater. But if I get two tickets how certain is it that they would be together?

Thanks!

You need to click on the rush option at exactly 10 am (when it opens), if the show is in high demand. Also note that today Tix adds a fee to its listed ticket price, ranging from between $8-12 per ticket. If you have TDF, I think that's a little cheaper.