I've heard only a little about it, but mostly good. I think most indoor dro growers are against it because they don't have complete control over it. Indoor growers, for some reason, are super obsessed with grow ops being like science labs.
I'm getting ready to start an indoor grow. I'm going to almost nothing different than when I plant outdoors. Put my sprouts in some dirt, water them when they need it, nute them on a more regular schedule (lack of fresh air, rain, etc etc), and watch for signs of stress, and if there is any, fix it, just like I have with everything else I've ever grown.
It's a weed, people. It can grow just fine in less-than-perfect conditions. >.>