Paul, I'd say they both look just about like they did when first sprayed. My EX is hangared so that helps but I really see no change in gloss or appearance.
The polytone is a flatter finish and I added their flattener to the Aerothane to match gloss. Both products are easy to spray. This winter I covered a spare set of horizontal stabs, as reported in another thread, and used Polytone and un-flattened Aerothane for trim.
Polytone is is easier to patch and a little lighter weight too according to Polyfiber. If Polytone is put on too heavy it will crack but I haven't seen any of that on this plane.