Walking through the Wynn, we noticed the parasols and decided to have a drink outside since it was a nice day and we were not in a rush. Ordered a few drinks that were really tasty, and not too strong. Probably not really worth the $16-$20 for what it was, but we took our time to enjoy the scenery, have good conversations, and sip on our cocktails.
Only con is they should have a restroom closer to the bar, rather than upstairs in the casino.