I only had to replace the inverter, as the old aurora one failed. One phone call with Rollo in the afternoon the new inverter was installed by 10.00am the next day. As I live about 130kms from their depot in Cairns I found the service to be fantastic. The young techo Bodie, was very polite and competent going about the installation. Anyone I speak to contemplating installing a solar system I would have no hesitation recommending this company.