On our first two cruises we didn't bother... the Magic (2nd cruise) was completely insane when it was time for the buffet, the line was all the way along the deck and didn't seem to move. The next day it was pretty disgusting seeing the amount of turkey legs chucked into the halls! Didn't notice that on the Dream or Fantasy. Curiosity got the better of us the 3rd time (Fantasy) and we tried it out, it was that chaotic in Cabanas that we gave up trying to grab anything before we got near the crepe station. The amount of people that push in when there's clearly some form of line moving between the stations! It's like someone else said, pretty much everyone has had dinner, maybe even more, within just the last few hours so the mad rush doesn't make a lot of sense. I would try it once more just to give the crepes a go, but the main buffet wasn't very impressive at all.