Excellent and prompt! Good Christian folks. (I believe this is a family business as Mr. Wilson's nephew works with him.) Very friendly and knowledgable. Obviously been in business for a very long time. As a homeowner who has never dealt with septic systems before, Mr. Wilson took the time to explain everything I should be doing for maintenance. They were very prompt (and came out less than 24 hours after I called) and had the job done quickly. I would highly recommend using them. I couldn't be more pleased with the service.