In 3 cruises, I have not had a problem.
The servers were all excellant and accomadating. I never had to request to change tables, even though I travel alone. Once I was seated with a group of other single women, they were a hoot. The second time I was seated with 3 couples from 3 different parts of the country. They were diverse, but friendly and interesting. The last cruise, I was seated with a family of 5. Now you would think this might be uncomfortable, but it actually turned out fine.
I would not hesitate to speak with the head server if I had concerns, or call guest services if there were problems in my stateroom.