I worked Custodial and absolutely LOVED it.
I won't lie, there is work involved. I like keeping busy, so I actually liked the cleaning, but I know some of my co-workers were less enthused. Yes, there are trash runs and bussing tables, restrooms and code Vs; but once you get through the first week it becomes second nature and you hardly even think about doing it. You'll see some crazy things in restrooms and on streets, but through all the weird things I've dealt with, I always look back and laugh.
What I really loved about Custodial was the freedom and the guest interaction. There is SO much guest interaction- I spent so much of my time just pin trading, giving directions, pre-parade games, making water mickeys, learning about where people came from and why they were here. I met a lot of really interesting people, and made a lot of people smile.
I know I'm really just repeating what smkohn already said, but it truly is a fun role!