Hey Relik.
I used it and it for cloning and transplanting the clones and it was absolutely incredible. I did an experiment of NutriStart vs Gel and with eight plants (four Nutri / 4 Gel) and the Nutri plants outpaced the Gel plants by twice as much. Make sure you don't use more than the recommended dosage...especially for cloning.
Just a note that I no longer use it anymore as it is not organic...I didn't realize it until I went to buy a new bottle a few weeks ago. Other than that...it is worth it's weight in gold.
Best o luck!