After going from the sala exofit tower harness to the delta tower harness i can say that the delta is allot more comfier! The seat on the delta is far superior to the exofit and allows maximum comfort for hours up the tower. I also purchased a 2.5m pole belt and this has been good also. Although every now and then it lossens itself on my whilst im in position which can be quite annoying .but overall both items purchased have been fine