Been here twice this week... first time I was playing a poker tournament and stopped in to grab a sandwich. The sandwich was delicious, and huge, but took way too long to make. I had the David Letterman, which was a huge pile of turkey and a bunch of bacon with tomato, triple decker style, for $10.99. Came with a pickle and potato salad.
Went again after seeing Elton John with my family. I just had a coffee, but they had soup and dessert. One of the desserts was so stale we had to send it back (strawberry shortcake). Our server barely spoke English, so that was an ordeal.
Long story short, this place is pretty decent and a good cheap(er) alternative to the fancy restaurants in Caesars Palace. But don't make a trek over here for a meal... there's better places to eat if you don't happen to be inside the mall.