$35 per person for brunch- $47 including unlimited mimosas and Bloody Mary's.
I've been to Vegas a couple dozen times, but this was only my second time to a Vegas buffet. We had waited for 30 minutes the previously morning for The Henry (also in the Cosmo), so when we had a limited time to grab breakfast, the buffet seemed like a solid, quick option.
The food was pretty good with lots of live stations. I liked that none of the food seemed to be sitting and there was fast turnover. The Asian station was lack luster, but the breakfast items and the fried chicken (served in a tiny fryer basket) where the highlights. Chefs were also happy to make custom items (for example, I wanted a benedict without sauce).
Desserts were in small individual serving sizes, including some gluten free options.
Be sure to check to see if you can redeem points from your stay before shelling out full price.