Pros
Get to be around all kinds of cool gear like amps, guitars, basses, audio equipment, and you do learn a lot by being in that environment all the time. Also getting to talk to like-minded musicians all day is a great way to spend your time while making a little money.
Cons
This company has been in brutal debt for a long time now and everyone up and down the entire hierarchy of management feels the pressure. This leads to nonsensical solutions like the constant slashing of hours of employees, leaving any remaining staff on the floor with their hands so full that customers either wait angrily and resentfullly, or just flat out walk out of the store. The turnover rate at some stores is so high that oftentimes much knowledge of how store processes work, end up disappearing with the employees who quit or were let go. Demands and actions of management seem to follow no real logic, or a tangible realistic plan for improvement for either the employees or the customers.