On the way to Dallas we saw this DQ right inside of Texas. We decided we needed a tasty treat so we quickly exited I-20.
There was a line at the drive-thru, and the person in front of us was slow. When we pulled up, the attendant was friendly and even explained what was in a certain blizzard without becoming frustrated. This particular DQ has two windows so we pulled up to the first to pay. The person at the second window must have had a large order, so they brought ours to the first window. This was nice so we wouldn't have to sit and wait.
The snickers blizzard was excellent. I'm not sure how many calories are in this thing (I don't want to know), but it was well worth it.