Vantaggi
Corporate is very responsible, they want you to succeed, get trained up, and resolve issues. I had an unfortunate situation with an employee, and there was a pretty bad work environment when I first started. After a year, the rough people were slowly removed and the issues dealt with seriously and handily. Management was very good and reasonable and effective as well. Lots of policies and paperwork associated with this kind of corporation, but that can be a good thing.
Svantaggi
Raises are scarce. There are no regular raises, and only one coworker I knew of got a raise in the time I was there. It's not impossible, but negotiate for good pay at the start. Lots of paperwork, if you aren't into filling out lots of forms in-detail and covering your end of the funeral process, it might not be a good fit for you, but they follow them for legal reasons. Try a family owned where they are more lax with regulations, maybe at your own risk, though i don't mean to bad-mouth such facilities!