I like how easy it was for my husband and me (both not electrical engineers)to install this product in our garage! It's very simple--we were able to get started right away with zero experience as far as electronics go. We have been using the unit since September of 2016; however we are still learning more about its capabilities each day. So far so good!! For us there really isn't much downside. If you're looking at installing an electric vehicle charging station, then look no further than the IQ System. This allows users multiple options when they want to charge their vehicles--from slow trickle chargers to fast DC charger stations all within one location.