Pros
You're surrounded by pop culture items constantly, always knowing what's new to come (perfect job for a collector). It's a fun environment, you basically get paid to talk about your interests with customers and the managers and coworkers are very understanding and accommodating. The benefits are amazing; 30% off both in store and online, as well as 40% off at Hot Topic due to BoxLunch being its sister company.
Cons
If you have trouble talking to people/social anxieties, you're forced into talking with every single customer that walks into the store. Not just the basic "how are you?" "how can I help you?", but you have to genuinely start a conversation with them (it's daunting at first but it honestly helped me open up and be more social and outgoing in the long run).