No doubt you would have got results to assist in weight gain as it certainly has a decently laid out list of what is typically seen in 'weight gainers.'
If we had to break it down further in terms of what your dollar is buying however, it does get a little disappointing.
Directly from their website, they state $70 for 900grams.
Of that 900 gram tub, 225 grams is sugar (25%).
What you're left with is a remaining 675grams of powder in the tub which your money is paying for. Although sugar has some worth to it, it generally does not cost a company much to add it in as the costs are with the Whey protein.
Of that remaining 675 grams, Creatine in the product makes up 45 grams.
With gums, flavouring and sweetener also in the mix, you're left with a little over half a kilo of WPC at that $70 price tag.