Made this today, and it is wonderful! Yes, I agree with the dilution issue mentioned.
Can't wait to use it as the base for some frozen margaritas, too!
The complexity of flavors in this is wonderful. You may be skeptical about the rosemary but this really works! Definitely serve over ice, because it can stand to be slightly diluted, as mentioned in another review. Served it at Thanksgiving and it was a huge hit.
I would definitely dilute this with at least 2 cups of water. It was very, very sweet/strong before we diluted it. Just too much. But after adding water (I didn't really measure...do it to your taste) it was much better!