Det er et meget effektivt instrument, idet operatørerne tvinges til at gøre deres yderste for at behandle deres kunder godt, da de ellers risikerer, at kunderne skifter operatør, hvilket er en forholdsvis nem mulighed.
It is an extremely effective means of obliging operators to do their best to treat their customers well, knowing that it is relatively easy for them to switch to another operator.