I know that Michael Richman uses it extensivly in his camera tests on the luminous landscape website. I have used a trial version and found it to be very good at correcting certain lens flaws. However, i do think that it's main application for myself would be for my non aviation shots. I saw no benefit for using it for my aviation work.
5D2/7D/1D2(soon to be a 1Dx) 17-40L/24-105L/70-200F2.8L/100-400L/24F1.4LII/50F1.2L/85F1.2LII