Vantaggi
Some of your coworkers are cool. Benefits. Sports. The positives end there.
Svantaggi
Can't speak for every department but for Master, middle/upper management is not on your side. I was hired seasonally, then became part-time, and was told by my boss I would be full-time a few months later. When nothing happened, I brought it up months later to a colleague, and he said he would discuss with my boss. My boss never brought it up to me again. During this time, I was scolded by him for not mentoring full-time employees more...as a part-time employee. Tone deaf as hell. They also talk badly about current and former employees behind their back, micromanage, do all the annoying stuff that makes working in the department stressful. Other cons include low pay and long/late/weekend hours (though that's most TV).