This charger has a shorter and slimmer profile and most chargers, but it's not one of the super compact models that are difficult to get out of the DC adapter in your car. It's small enough to be out of the way, but big enough to be easy to remove. All of my cell phones support fast-charge and this provides enough power to handle them in the car, unlike my old charger that was extremely slow.
This also has a nice feel to the outside surface, replacing the typical smooth, shiny, slick black plastic finish with their "rubberized" feel. It's easier to grip, and looks nice.
The only complaint I currently have is that the charger is so much smaller than my DC adapter, that it wiggles around a bit when placed properly. The metal contacts on the side work properly to maintain contact and provide power, but the housing of the charger rocks a bit around those contacts because there is so much room between the housing of the charger and the walls of the DC port. This isn't a deal breaker, but it's worth noting.
Overall, I am pleased with the purchase and would buy another.