Friendliest DB I've been to, and quite possibly the fastest as well. They are super sweet and easy to talk to (at other locations, it can be somewhat forced).
This was also my first encounter with DB, and I got sucked in due to how nice they all were! I tried the Annihilator, and it was very very creamy and sweet. Eh. The toddler got a mini strawberry smoothie - which was really tasty, and she loved getting her "coffee" too, just like mama.
I've found that the "911" is my jam - it's good hot, iced, and blended too. Definitely on the sweeter side, but the 5-6 shots of espresso pull through!