We bought and installed QuickLine because we thought it would be great for stern anchors or stern ties. After 7 years we have yet to use it for that.
On the other hand… it makes a fantastic Jack Line distributor… and that is what we use it for. We roll out the flat line around the boat every time we head off-shore and make sure we are clipped to it whenever we leave the cockpit.
When we arrive at our destination… we roll it back (sometimes rinse it beforehand).