Visiting the United Airlines Detroit Office in Michigan – Any Advice?

I'm planning to visit the United Airlines Detroit Office in Michigan soon and wanted to hear from anyone who has been there. I know the office can help with flight bookings, changes, and baggage concerns, but I’m curious about how smooth the process actually is. Are wait times usually long, or is it generally quick if you go at certain hours? I’d also like to know how helpful the staff are, especially for first-time visitors. Any tips, advice, or personal experiences would be really appreciated it could make the visit much easier for me and for others planning to go there.