Vantaggi
If you truly love customer service then this is the job for you, otherwise you'll be frustrated. Most managers are nice and fair. They will train you or speak from a position of positive leadership and expectation. They also attempt to encourage good performance through games, Star rewards program & personal rewards like Starbucks. The work can be intensely physical, and the expectations are high but mostly in a good way because you feel accomplished when you complete your projects.
Svantaggi
Like any job, sometimes the management really doesn't have the proper training to be a good manager or lead staff. It's easy to criticize or strike someone down because they haven't met expectation, but much more challenging to lead someone to success through example,by providing proper training and actual leadership. Move fast, walk fast, service the customer fast. This is a good and bad thing. I think before I do, but if you can run on fumes and process without thinking you're in good form and in the right place.