I just compared it to some Part "B" NutriGrow by NutriLife I have and it's basically the same at about 1/3 the price.
The NPK ratios are different than the DaKine Bloom at 8-14-28 compared to the Nutrigrow 3-9-27. Some of the micro-nutes levels are different but they are all there in both.
One thing that would turn me off is the only one that has calcium is the Grow which also has 14% N. That means you'd either have to be adding all that N during flowering which I don't want or supplement with CalMag so you wouldn't have to use the Grow portion. A minor annoyance but extra expense and someone with less awareness of what's needed for growing and just following directions wouldn't know. The one I have doesn't have Ca listed either so it must have it in Part "A" but I don't have that one.
It seems to me that DaKine is about the same as most powdered nutes like Peter's and their like but pricier.
Free is best tho.