Yep, take pack your patience along with your highlighters lol. There are busy times and yes, some people will rudely push their way in front of you, but honestly, if you try to go at the not so busy times, it's not bad. If you look at the daily program I posted earlier, you will see hours listed for all venues including restaurants. Usually one of the MDRs is open for a sitdown breakfast, which can be nice.
My husband and I had Aurea experience on our first MSC cruise on the Divina. We did not need reservations for that cruise, we just walked up to the hostess stand and were walked directly to our table.