I used Miracle Grow Moisture Control soil once and I didn't have any problems. The complaints I've read about are how it tends to stay acidic, doesn't drain well and is easier to over water. If your climate is dry and hot, it might work out fine for you.
Here are a couple pictures of a Northern Lights plant that is in week 5 of flower. Slowly the leaves at the bud sites on the tops of the plant(s) have turned light green.
Medium: Sunshine #4
Nutrient line: Cyco Platinum Series
Lights: Flowering under 4 x 1000 HPS 18" above the canopy
Temp...