Pros: I have purchased 16 of these units
I have used many of these MX 60 charge controllers. These devices are somewhat programmable and work very well. We have asked Outback for updates to this product and they have supported our efforts in increasing performance of the charging of batteries. They have worked for years without a problem. They do have a limit of 140 volts DC from the Solar Panels. But they do work well as a charge controller.