I have been using Megacrop for the last year or so, and I'd have to say its the easiest stuff I've ever used. And so freaking cheap. I still have a half of a kitty litter bucket left, and I've run two crops out of it already. I've used advanced, Neptunes Harvest products, Roots Organic, and General Organics before, and this stuff is on par with any of them. I have not added extra PK yet, but I may do it this round. I can try to upload pics if I can overcome being completely technologically challenged.