Perhaps a simpler analogy, you see a new bag/flavour of chips in the store, "super crunchy" "delicious", you buy it, go home, tastes horrible, barely crunchy, do you get to take it back and get your money back?
If it says super crunchy and you assess the crunchiness is merely average, well, that's your perception.
But if it says it's paprika flavoured and it turns out to be sauerkraut, you gotta bring it back to the store.