Vitalink nutrients has anyone used it? Soil grow

I recently purchased vitalink pk and buddy, in progress of using it... Was wondering if anyone out there can show me what they do or maybe what they don't do lol

Late reply but for anyone else reading this; use buddy from week 3 to week 5, then switch to PK 13/14 for one week only and then back to buddy until flush. Do not use them at the same time. Also, I find PK 13/14 quite unnecessary. Buddy is highly concentrated and can be used as the only additive. Add it at 1 ml/l and then add the bloom nutrients until you hit your PPM target for the week. I use it with flora series trio and nothing else. It's a cheap, effective combination that works in both my soil and hydro grows.