I used to work at Palazzo and went to Grand Lux cafe a lot. I recently went there and was once again blown away by the consistently good food and service. I usually sit at the bar and have always had great meals there.
It's strange though, the Grand Lux at The Venetian, which is open 24 hours a day, isn't even close to as good. I can't figure out why. Maybe the 24 hour operation drains the spirit out of the workers. Who knows.
At the Palazzo location, however, If you get the Linguine with Clams and pay an extra three bucks for the shrimp you have a $19.95 plate of pasta that is downright awesome.
The Corn Beef Hash and a Sam Adams is the time tested and purest way to kick any of the previous nights activities out of the loop and make you feel like sunshine.
They've got some version of the Molten Chocolate Cake that is grand. It's take 20 minutes so be aware.
One word to the wise, their dishwasher leaves some kind of film that affects the taste of the draft beer. The bartenders are aware of it and try to rinse the glasses before serving, but it slips their mind sometimes.
Other than that, I have nothing but good things to say about this location of Grand Lux.