not that, you get what you put in. you'll have much better quality with something different from miracle grow. plus i don't like that mushrooms always grow in that soil on its own. i even use ocean forest for my seasonings, avocado tree, lemon tree, and spanish lime tree.
my rule of thumb never buy soil that is stored outside. hydro shops spray the inside of their stores for pests so if any pests are there, they would be killed. i know soil companies have huge piles of soil sitting outside before they bag them up. but i still stick to that and its served me well