They work in the overwhelming majority of cases. It is very important to remember that no one, except the Al-m-ighty Himself, can promise the amulet will work 100% successfully. And it is for this reason in particular Gersh Nubirg provides a one year warranty for his services. However, if all the conditions of the writing and use were observed, then the chances that the problematic situation will improve or be resolved completely are very high. Even if an obvious improvement is not observed, one may definitely say that the correct use of the amulet can slow or stop the situation's development in a worse direction. In general, the prevention of a worsening situation is already being considered as a success.