Oh Boy... Here we go. There is an actual house and garden thread if you look for it it will be on the first page or two of nutrients section(where you posted this). I absolutely LOVE House and Garden but REALLY don't want to sit here for hours explaining how great they are. What medium you growing in? Do you plan on running the complete line etc.
I have first hand experience running House and Garden vs Advanced and have seen how much better H&G is which a lot of people on here will tell you how amazing Advanced is. Some of H&G products like Roots Excelurator specifically is amazing. It is hands down my favorite additive of any made. You will see such explosive root growth compared to the same strain grown right beside it without RE. With RE you have a hard time letting a plant grow 16'' in a 1 gal pot before having to transplant which I will get clones from my friends in a 1 gal pot that are over 24 inches tall and wide.
It isn't a cheap line especially to start with but 1 advantage is how much less you use per gal that it actually makes it fairly cheaper and no more expensive than quite a few synthetic lines while being far superior.