Significant improvement for me. The sheet runs through the blocks more easily making tacking and bearing away onto the run smoother and you do not need to keep replacing a mountain of tape on the traveller block to stop the tape giving way and locking the blocks at the most inconvienient moment.
It's useful to shop around for that. There are 'alternatives' (= non-OEM equipment) available. Again, shop around on the internet if you are into that. But that's not Harken.
Last week I spotted an Aussie-built boat with protective strips across the rear deck. Not original and perhaps not allowed during official regattas, but for club racing etc the perfect protection of your boat's deck.
We talked about this a while ago, and there's a new-ish interpretation (it's still number 2) that allows deck protection at the traveller fairleads. How far it can extend ("across the deck"?) is anybody's guess, though.