Make this your first stop, get the refillable to-go cup, and enjoy cheap refills for the duration of your stay. We were staying at the MGM Grand Signature Towers and passed by here on our way to explore the casino. Lisa was very friendly and gave us plenty of samples of the different flavors and advised us on proper refill strategy. The drinks are pretty sugary and the amount of alcohol could be increased, but the refill policy makes it worth it. Just don't try to drink too fast because you will get brain freeze.