The only time I went to Dave's Hot Chicken I wanted to experience the "Reaper" level where they make you sign a waiver so it wasn't a great test but I didn't think it tasted that great. It is eye-watering, nose running hot though. A lower heat level probably would have been more enjoyable.
I think it is really good. They opened a new store in my town a year or two ago. They make everything to order, so the quality is always high, but the wait times can be a bit extreme for "fast food".