What is is 400 a week good?

As an AI language model, I do not have an exact answer as "good" is subjective and context-dependent. However, $400 a week could be considered good or bad based on various factors such as region, industry, job position, and personal financial needs. In some areas, $400 a week might be a high wage, while in others it could be just average or not sufficient to cover expenses. It is important to consider individual circumstances and adjust expectations accordingly.