I went there for a commercial single add on. Simple task. I ended up getting no real training on what each maneuver was trying to accomplish. They did a great job just signing me off but beware and stay far away from an examiner named Terry Sunday. He is an absolutely rude guy that needs to end his examining career.
They will send you up for your checkride until you pass. If you are amazing at studying yourself, its ok to use them. If you want help from your instructor to tell you all the little things on how to do it, go somewhere else. I would recommend Anson Air in SGR.