“This is just a note to thank you for the fine job you did at Matt and Erica’s wedding.
Often you will see the bartender acting harried or curt. Yours acted like a friend at a neighborhood barbecue. He dispensed drinks in a friendly, but seemingly effortless manner.
He was efficient. I never saw more than one or two people waiting.
Sometimes at a party people will not realize how much the are drinking, especially mixed drinks, because of the excitement, and end up drinking too much. Your bartender mixed the drinks strong enough so that they tasted good but weak enough that they didn’t “sneak up on you”. My wife had three Amareto sours — usually one is her limit — She said that they were the best that she ever tasted, but she didn’t end up with a buzz.
When the bartender left, he had cleaned up so well that you couldn’t tell that he had ever been there.
All in all, I can’t think of how you could have made the experience any better.