Great solution but failure to deliver

In the world of Solar Geysers there are lots of options, competitors and solutions and it requires someone to stand out. I decided to go with UberSolar given a positive reference from a colleague and the comprehensive information provided. They were quick to provide a quote and confirm installation, but this is where it stopped. The solar system was installed without the controller (this was not shared up-front) and numerous empty promises were provided with regard to their receipt of the controllers and then the subsequent installation. A month later we still do not have the controller installed and there is still no confirmation of delivery. Knowing what I know now I would definitely have gone with one of the cheaper more proactive solutions and installers.