For a period of time, I have played very little guitar and left it aside gathering dust on the gigbag. After at least 5 months, the guitar strings still felt "fresh," highly playable and sounding as described.
However, you must put into consideration that after a prolonged time of playing them, the clear coat wears off and become good old quality strings. Im a big fan of these and feel really great for my playing and guitars. I was heavily sceptical for them at first, but instead pleasently surprised by the feel and sound it produced.
Warmly reccomending them to seasonal players, or people that dont wish to change guitar strings every time they decide to pick up that specific guitar again.