I haven't had an awesome experience with the Delta employees in Phoenix, but I never really had a truly awful one either. Let me say this, I find the policies at the Phoenix location to be a bit frustrating and when it came time to check my bags and other things, I found it to be a cumbersome process. I am hearing impaired, so detailed and appropriate signage is always very helpful to me, but I guess that instead of having good signage, Delta prefers to have a person police the area and direct customers. Not a bad deal, since being hands off customer service wise seems to be the norm for large companies.
However, in the middle of a crowd of people it becomes difficult for me to hear others, and I don't appreciate the stress that comes from having to struggle to understand a woman who speaks so softly that I have to go through the indignity of her using some primitive sign language she made up on the spot to communicate with me. I don't think it's her fault really, but more of the fault of fault of poor planning and signage.