My time at Guest Relations was a mix. I ended up doing two tour on property (Keys to the Kingdom and Star Wars Guided Tour) which were once in a lifetime experiences which I loved every minute of.
Then there were days when a guest would come up the GR window, slam their magic bands on the counter, say "fix it" and fold their arms, in front of kids and wife. Of course you take the bands and look it up. Looks like they just need to prove their FL resident, so you ask for their FL ID for both wife and mean guy and they throw it at you like it's the worst thing in the world, where they mutter "this is so ridiculous, why couldn't they do this at the hotel?" Which I answer "they don't have access to activate tickets like we do" and I get them activated slide their bands back and say "all set have a good day" which they snatch and leave.
Now the next guest walks up. It's hard to have a perfect attitude for this next guest. It's probably the same thing, or their mad that ___ attraction broke down. So you give them a FP (not valid at Galaxys Edge) and send them on their way. Here comes the next guest...
The problem for me was that I could not get Guest #1 out of my head the entire day, even the rest of the day after I left work, that it ended up being mentally unwell for me to be there. So I left, found a computer programming job with Disney, then got laid off.
The tours, I loved. I loved comp'ing stuffed animals for kids, or doing magical moments, but the people who were mad at VERY first world problems really took a toll on me.