I hit the drive-thru window of this PDQ about once a week after work, which is about 9:30 PM. I've never eaten inside the restaurant, so this review is based on their takeout service and food.
The service is excellent. You drive up to a window and give your order directly to a person. I feel there is less chance for mix-ups when you're not yelling through a speaker. That person reviews your order, takes your money, and then you proceed to the pickup window. I've never had to wait long for my food to be ready.
The chicken tenders are fantastic, but the dipping sauces are what make them so good. I highly recommend the creamy garlic sauce, while my husband likes the chipotle bbq. You can ask for as many sauces as you'd like and they are free of charge, so load up. I use them with my fries instead of ketchup. The fries are great and rank right up there in my list of favorites when I eat out. I've only had a salad once and the dressings were wonderful. I asked for three different dressings because I couldn't make up my mind and, again, I wasn't charged for the extras. They have a Coke Freestyle machine so you can get whatever flavored soda your heart desires.
Haven't had a bad experience yet at this PDQ. If you haven't been you should really give it a try.