I also highly recommend it, if your camped in hot weather you ill find that it will keep the heat out of the kitchen side of the CT, and do it well, also oyu are able to leave your windows open a touch when its raining if needed.
I put it on our swan myself, very easy, I purchased the entire kit it thru Jayco, and over about 2 hours one sat morn fitted it, cut sail track to length, dril a hole every 200mm or so, and pop riv the sail track, and fix the awning thru the sail track, fit a screw each end of the rope on the awning to prevent it from sliding any further, and in a nutshell all done.
But defo worth getting, SWMBO will love ya more for it.
Swanny