My first few grows were with Miracle Grow soil and nutes. The best success I had with MG Soil was that Organic Blend they sell. It was fine. I didn't have any problems, and had some really nice smoke at the end as well.
Obviously there are better things to use, but people really go overboard imo with the negative comments on MG. It's just not that serious, and I guess it depends on one's level of involvement in the hobby. I like to think of myself as a 'casual grower' in that I don't earn an income from it, if I really wanted herb and didn't grow it I know where to buy it without having to visit some shady street corner, so it just wasn't that big of a deal at the time.
Since I now have a spot pretty local to me that sells grow products, I dont use MG anymore. And purchasing the stuff I use now in a bigger bag is actually cheaper than MG I usually get in smaller bags closer to me. But if I ever had to grow with MG again, I'd be willing to bet that I could grow just as nice of a plant with that than anything else. By that I mean, someone sampling some of my herb with/without MG would be just as satisfied.