I try to honestly review most of my Amazon purchases. Most are given a five star review because I did my homework before ordering and knew exactly what I was getting. Ease of installation is hard to do as it depends upon where product is going. Recently bought two batteries to go in jump boxes. One was a piece of cake to install, and the other definitely wasn't. Nothing to do with batteries, but how jump boxes were built. What bothers me though is buyers with complicated questions that don't contact the seller first. Fleck water softeners is the biggest one. Seller can tell you more about the unit than I can, even though we have one. But Amazon will put an item up for review before it's been shipped, so I can't review it. I'm a Vine member at Amazon, FYI