I got samples Of Cutting Edge Solutions nutrients at the show in San Fransisco. At the moment I am low on ends so I Figured I would give this stuff a try. Cutting edge is a 3 part solution. Following the suggested the directions on the bottle I was happy with the results I achieved. I am really not sure how much this stuff cost, but if it is competitive in price I would suggest it. One thing I noticed is that the micro is super dark. I was using Sure to grow at the time and it was dark purple by the end. I really don't think it is a big deal, and it didn't seem to effect the growth at all.