After having used a few other controllers and trying a Victron, I'll never switch back. The ability to analyze power generation through the app satisfies my geeky side. It also seems to capture more power than other controllers I've used. My only criticism would be the connectors / terminals aren't don't have the same quality feel as the rest of the unit.

Purchased this controller to hook up a 120W solar panel to the campervan and have been very impressed. The app which connects via bluetooth gives a good indication of the power being produced by the solar, and also how much current is being drawn by the load. It will also disconnect the load if the battery voltage drops too far to prevent a deep discharge of the battery. Only negative is the printed instructions which are so small they're not readable. Fortunately the manuals can be downloaded from the Victron website.

I bought two controllers, one for each 100 watt solar panel on my boat that lives at a mooring. They have worked flawlessly. I am obsessed with the VectronControl app. It is the first thing I check when I get to the boat to see how the solar panels are performing and their charging history. I have attached a Dometic portable fridge/freezer to one of the Load Outputs to keep drinks and food cold when we are away from the boat. The automatic shutoff works to stop the fridge from running down the batteries if we are without much sun for a few days.