At a part-time level, you'll get a chance to work with a large, diverse team comprised of genuinely enjoyable people. You can also advance in the company if you dedicate yourself to a strong work ethic and a desire to network.
Cons
Work can be scarce, depending on your venue. A lack of events will lead to a lack of hours (providing you are part-time), so you'll typically want to have this as a secondary job.