Typical overpriced casino bar, but the drinks are good and the bartender was extremely nice and helpful.
Be prepared though, what you pay is based on how much alcohol you ask for. When I asked how much one drink was I was told it was $X for 2 oz of liquor, $X for 4 oz, etc. I know some people have complained that they couldn't taste the alcohol, they problem choose the cheap version.
This is Caesar's Palace, it's not going to be cheap. Spend the extra and get the alcohol.