We were there this weekend for breakfast, and ended up having brunch due to the long line.  It was $24.99 for brunch.  The wait was long but the food was ok.  I like from a scale of 1 to 10, I give it a 6, compared to the Wynn which I give a 9.  A lot of their food lacked flavor.  The line was long and the dessert bar SUCKED!  I love dessert, and it is a 3 compared to the Wynn which i give a 10.  I guess you get what you pay for.  Taste wise, I did not care for it.  Our waitress was great, she was very busy, but she tried to keep up with our needs especially the mimosa refills, which I guess was the only good thing about the buffet because it was included and non stop refills.  I would have given this place a 3 star except for the situation that happened while we were waiting for a table.  Originally we had 4 people for the buffet, and a few of our friends joined us and it turned into 9.  Which after waiting for an hour and a half in line, we didn't want to wait for a larger table.  There was a large group in front of us maybe about 20 before we got there and they waited for a while for a table.  So we decided that we were going to split into 2 groups since we weren't going to leave the restaurant at the same time anyways.  So we told our waitress that we wanted to go from 9 people into 2 groups of 4 and 5.  Well, when we told her that she got mad, but we weren't even next in line for a table.  We were maybe about 10 people behind being next.  So we did ask if we can get seated near each other if possible but when we told her, Marta the hostess got all mad at us and started giving us dirty looks.  We were then seated and a few minutes later my friends that met us up there were seated as well, they were seated on the opposite side of the restaurant where there was another table that was vacant the whole entire time they were there even before they were seated.  So Marta could have seated us together but she didn't and while we were eating the whole time she kept giving us dirty looks.  We later realized that if it was a party of 8 people or more the gratuity charge is 18%.  So we were given bad service with dirty looks because our hostess wasn't going to get the 18% gratuity charge.  I have been to Rio and the Wynn's buffet, and never at any of the other two buffets had we had bad service due to a gratuity charge.  Like I said you get what you pay for.  And another thing that I almost forgot to mention if you are looking for the omelet station, look at the dessert bar, because it's not near where the savory food is, but if you are looking for the crepe bar, it is next to where the savory food are and oh don't get banana's for your crepe, because they are brown and mushy.