Just purchased this box spring so my opinion may change later on but for the moment, I absolutely love it!! It was assembled in about 15 minutes, if that, the slip cover is a great material, and as much as I twist and turn when sleeping, this box spring does make a sound! The slip cover, while being a great material, does NOT cover the entire spring though. It covers all sides well but has an elastic that goes under the corners. My box spring sits on a platform bed  and because it's 9", made my bed much higher but for me it's perfect. A 5" or 7" would work best if you prefer a lower profile box spring but I would definitely order this item again and highly recommend it.