I sell them, and also own one in a gas station. The inverted L does do the front and rear better. That said, the Nexus also does some things better. Without the wand going across the front and rear, the machine cleans faster. It will also never hit anything. You can pull a truck with a trailer in and wash it. The rotating nozzles put on a better show, they actually rock the car. You can somewhat overcome the wand's ability to do the car's ends by fine tuning the program to linger at the front and rear. Quality chemicals are a must, as is the case with any touchless. All the Magic Wand machines are easy to work on and parts are never an issue. There are some good deals on used ones out there right now. I would go visit one and sit inside while it washes.