We bought our first one of these in November of 2017, and just put on the second one July 29, 2019.  The fabric of the first one just started to pull apart, and not in a place where it was rubbing or resting on the furniture or anything next to it.  We're trying again because it's such a good fit.  The quality of the cover is good and our furniture has been well-protected in two New York City winters with plenty of snow.