You get what you pay for, I bought multiple of these strings because I find this and the top E the first to go. This string sounds okay, it's not massively bright and will feel old after a single gig / long practice session. Cleaning would elongate it's sound life, but its more an emergency string that can be pulled out instead of wasting 1 out of a full set. Some last longer than others, I've had some snap quite quickly and others deteriorate though I usually change the string due to its sound before it snaps.
Recommended as a back up, would't recommend as a primary string set (if you bough one of each).