I have used Reliance for multiple services and equipment rentals in my 2 homes. Their service technicians are always great, friendly and knowledgeable, recent installs were neatly done and they cleaned up after nicely. My complaint is with their billing department. There have been numberous and erroneous billing issues, that though were able to resolve each time, there has been much time lost for each issue. It's too bad really, that with great customer service in all other areas, their billing department brings much frustration and hours lost on multiple calls. If I hadn't had all these billing issues I'd give a higher star rating