Went on the same cruise in Feb this year. The anytime dining is great but try to avoid around 7pm usually very busy and you may have to wait, if this is the case the head waiter gives you a bleeper so you can go off for a drink or just wait in the lounge and when a table is free they just bleep you , fantastic idea. You can also pre book a time to eat. Every night you will be eating with differant people from all all parts of the world, wonderful conversation. The cruise is fantastic you will have a great time.
We were on 'anytime' and rang to prebook a time as stated in the blurb in the cabin. However we were just told to turn up as there were only 2 of us. Being an unsociable pair we like to dine alone rather than with different people every day and we went in about 6.30 each evening with no problem. Once we did have to have a bleeper and that was because it was about 7.30 that we tried to get in for a table for 2. If we had been willing to join a big table we wouldn't have had any need.