I am on a roll, going through all my reviews from 3 years ago lol.
I think I like Wicked Spoon because we would only go there for breakfast/brunch and since we would always stay at the Cosmo it is conveniently located downstairs. I have been to Wicked Spoon three times, and every time was for breakfast or lunch. I've never gone here for dinner, so I cannot comment on dinner buffet. However, I love breakfast food, and I thought Wicked Spoon was quite good. Probably not $35 good, but still that's how much buffets cost in Vegas on the strip so live with it.
I've never had to wait in this long line that everyone mentions in their reviews, and normally we just walk right in during the morning or lunch time, it really is not that crowded.
My favorite items were the french toast, eggs benedict, bone marrow, fruits, and dessert bar. Their presentation of food for a buffet is excellent. Let me make it clear that they do NOT have the variety and quantity of food at Bacchanal or Bellagio. But the quality and presentation of their breakfast and brunch items is excellent, especially if you are hung over. ;)
Looking at all the mediocre reviews of their dinner buffet, I think I'll stick to going to breakfast/brunch.