I have been using Control Unlimited systems for about 10 years.
These guys know their stuff. The aeration control system has been faultless and the advice that we have received regarding wider issues of aeration has saved us heaps of time and money.
These guys have customised a grain control system for our feedlot that allows us to process grain without the worry of overflowing the mill or grain augers. It is an automated system that shuts itself down when the job is done or when a part of the system malfunctions.
Their backup parts and service are very good as is their ability to design and/or troubleshoot over the phone. They keep records of the systems that they develop which make parts ordering very quick and easy for us in remote areas.