1. An apparatus for storing information relating to acoustic feedback events of a hearing assistance device, comprising: a microphone to receive sound and convert it to an input signal; a receiver adapted to play output sound based on an output signal; a digital signal processor adapted to process the input signal and generate the output signal, the digital signal processor adapted to perform a process to reduce acoustic feedback between the receiver and the microphone, the digital signal processor further adapted to store information relating to the acoustic feedback events over an extended period of use of the hearing assistance device, wherein the information is accessible for analysis to determine aspects of the acoustic feedback experienced by the hearing assistance device over the extended period of use, the extended period of use including different acoustic environments experienced by a wearer of the hearing assistance device during use of the hearing assistance device.