Sweep,
I haven't eaten in the Caronia Restaurant for 4 years, but then, you were allocated a table for the duration of the voyage for breakfast, lunch and dinner. We were part of a group and we tended to be together and so ate at the same time. Last year, we were on QM2 and had a fixed table for dinner and sometimes the other people at the table arrived later or not at all (as we did) - didn't seem to matter. In the Caronia restaurant, you can sit down to dine at any time from 7.30pm to 9pm. On our first cruise, we ate at 8.30 because that was the time the rest of our group went to eat in the Mauretania. On our next cruise, we'll probably eat at 7.30 as that's the time we normally eat at home.
The dining room is not open dining and there are a number of tables for two. You can request a table for two when you make the booking, but I guess it would be first come first served if too many people make the same request.
C5 cabins seem to vary considerably in size (from 103 to 214 square feet) - the ones on deck four would be the best bet as most of them are near the centre of the ship. We have not tried this grade, C3 on our first cruise, M3 the last one and C1 on the 18th. July. if you want some more information on the cabins, try this link:
http://www.deluxecruises.com/cunard/...eens_grill.htm
Can give you more information after we get back from this next cruise on the 30th. July.
Regards,
Paul