haha its good if you add stuff to it. perlite, bat guano, blood meal, bone meal, epson salts, pretty damn good mix. cant forget dolomite lime to keep ph neutral..
I've had decent success with Miracle Grow in the past...but I always go with Fox Farm Ocean Forest these days. If you have a choice...go Fox Farm. But it's definitely possible to get some nice buds with the Miracle Grow. Just make sure you get the Organic one that doesn't have the time-released nutrients.