First Financial Credit Union

I unfortunately am a member of a credit union in El Paso and First Financial collaborates with them using something called «shared branching». So If i want to deposit a check or any banking like that, I have to go to a first financial branch to do it. I have gone to the branch on Juan Tabo, and they seem nice enough but the branch downtown has the worst customer service. Usually they try to run you through as fast as possible but there is one teller, and I always seem to get her, who is just an absolute pain to work with. I dont know her name, shes Hispanic, middle aged, glasses and I think shes a manager type because sometimes they call her over to enter in her code. it never fails, I always get called over to her and she treats me like its a pain to deal with me. she has a very condescending tone to her voice, and sighs very loud if I ask her for something out of the ordinary. I complained to someone who I was told was a manager, but the next time I went in, she was there sighing away at me. If you must go to First Financial, stay away from this branch.