This is air ride at its most basic. The thing to remember is that the module is constantly analyzing the relationship between pressure and ride height. In the real world, the relationship and control system is more complex.
Just about every Asian and European luxury import nameplate manufacturer has a 7- to 10-year-old vehicle on the road with an air-ride suspension at all four corners. Chances are you will be servicing one of these vehicles sooner rather than later.