I think like you that the fact that this company makes money from users rather than receiving from rich benefactors, is not sufficient for disliking it. As yury

I think like you that the fact that this company makes money from users rather than receiving from rich benefactors, is not sufficient for disliking it. As yurylifshits points out, their ads make me feel like their product is awesome, and maybe it really is. Only that I would not know, till some users points out what are the pros and cons, with Khan Academy as second term of comparison. I, as eu universitary students, cannot afford to pay 400$, only to see if their products fits my needs. It's a pity I bet.