I just got back from cruising on the Crown. They had an employee stationed at the exit of the buffet to help you find a seat. It really helped and I thought it was a nice touch.
We did the Ultimate Balcony Dining in the mini-suite. It was too windy to try it on the balcony. Loved it but it probably wouldn't work well in a smaller cabin!
I have a call in for my TA to book the Grand for March 2012!