I like how simple it is to use - you just plug in your load (house) and connect up the solar panels. You do have to keep an eye out for the battery charging process when connecting loads as this can be slow at times depending on what's happening with current draw during that period. This is very easy to set up without needing too much technical knowledge or experience. We're saving money by using less electricity from our grid source so we've found this system helps us achieve both these costs savings along with reducing CO2 emissions!