Pros
Relaxed dress code, good discount, possible to have a fun work environment. Depending on your SM, DM, it can be very valuable resume building experience. However, that is generally not the case.
Cons
ASM is easily the worst position in the store. 90-95% of the responsibility of a SM but only about half the pay, while entry-level associates will get 3/4 your pay and have no added responsibility. Brutal retail scheduling, not as bad as big box store hours but still bad. Unless you have a great SM (you probably won’t) that knows how to schedule and hire. The illusion of upward mobility. Corporate talks a big game and has training plans on paper, but they will fall short of meeting the terms of your employment agreement. That goes for raises and for promotion opportunity. Outside talent gets paid more than homegrown. Corporate will issue changes without considering the effect on operations. They are functionally retarded when it comes to actually implementing their ideas in a real store.