Our family of 10 will taking our first
Disney cruise in Dec. We booked through a TA who also happens to be my cousin......BAD move! She didn't do ANYTHING that I couldn't have done either myself or through a Disney TA. Why did we use a TA? I nor my daughter, wanted to coordinate this trip for 10. We didn't want the hassle of the whole payment schedules, deadlines, hotels, transportation, etc. to deal with for everyone. Well, she was so incompetent and unprofessional. The biggest problem is that, she didn't know ANYTHING about Disney cruises, money saving tips, hotels, transportation, etc.!
Neither did I but, I spent hours of time educating myself on the "boards", Disney's cruise website and web searches. Was hoping for OBC but, at the end of the process, she almost lost the whole reservation (and money) for three people!!! We had to go over her head within her agency to save it.
Once you book with a TA, if you call Disney (for anything but basic answers to simple questions), they refer you back to your TA for assistance.
If you do use a TA, PLEASE make sure that, they are DISNEY SPECIALISTS. If you book with Disney, they can still coordinate your rooms, dinning as a group, special requests (medical / disabilities), transportation, etc. Doesn't that just make sense? Live and learn.....