I acquired an Elfa system in my existing closet, but recently wanted to give it an overhaul to better suit me. I was so glad that years later it's easy to do just that. I had to install some completely new tracks and move around a lot of what was existing. It was SUPER easy to do it solo with just a drill (you might need anchors if you're going into drywall). Anyway, if you want a customizable closet solution, I highly recommend!