David Daubach was knowledgeable and professional in his presentation.
Juan Hernandez, Jake and Daniel performed their tasks in a professional, workmanlike manner. The foreman also encouraged the crew to perform some tasks to gain some experience and he properly supervised their work.
They did a thorough cleanup even though it was dark by the time they finished.
My patio is on a sloping hillside, and the slab had cracked due to dirt washing out. I thought the system you have would be a more permanent repair, whereas, if it was just mud-jacked, the dirt would continue to wash out.