Blood bud and big bud

im thinking of using big bud for wk1 of flowering then dr hornbys big bud till wk 6 b4 flushing 7 n 8, do these products deliver a good enough result to justify prices and does anyone have any experience of them they could share thank you

I use bud blood and big bud and they work great
but you only wanna use big bud for weeks 2 to 4
For weeks 5 to 7 i use General hydroponics Kool bloom and it works great