Four stars is based on the price point. It’s suitable for a guest room or kids but IMO not as a primary bed. This is the first hybrid mattress we’ve had but I don’t see many advantages. The springs do provide some bounce and there’s little transfer movement.  However there’s very little support if you want to sit on the side and the corners all slope downwards. It’s heavy and cumbersome and not as comfortable as an all memory foamgel type bed in a box. While the plush topper is certainly very plush, it’s not quite enough to cushion the springs underneath. Relieved there was none of the gassing off that comes with many bed in a box mattresses. Aside from the product itself, the shipping box is really flimsy and doesn’t adequately protect it.