We've had this slip cover for 4+ years.  I love that I can launder it like I do a set of sheets!  It's more durable than I expected.  The only downside is that there's a lot of extra fabric which means the couch cover looks bunched here and there.  It also doesn't stay in the cushions very well.  As you sit on the couch the cover pulls out of the crevices.  But, again it's very durable, machine washable, and the price was ideal!