it really doean't matter what label you use, except price and quality, however the joy in the hobby of gardening is often the path each of us choses through our experience in the hobby. so bad ones are expensive some cheap ones are the best. so what i'm about to say is simply my opinion and because one thing works for one does not mean it'll work for the other, nevertheless there is a basics that you must know.
1 - get a basic N-P-K fert. these are the 3 numbers on the front of every nutrient label. if there are none it is not an N-P-K fert. there are 1 part, 2 and 3 part. A part is a bottle in this case.
2 - learn the plant, and reap the rewards. Some love phosphurous, others like potassium. this will determine what additives are best. Tomatoes for example can take up 3500ppm in the feeding at its peak and this fruit loves P and K which are the key factors in size and juiciness.
3 - some additives benefit all plants with vitamins, fulvic or humic acids, carbs, to name just a few. Watch out in this feild some get carried away and it can become a money pit.
4 - 2 cycles means to different feeding program, although they use the same ingredients NPK
5- many things can be fixed in the first cycle, don't worry to much about it, be prepaired for the second it is more complicated, stressfull and important for the final product.
6- lthat being said ike a house, build a proper foundation first, roots are very important to develop in the first cycle
how you create immobile life is up to you, organic, steroid bound, a bit of both.