Isn’t the digital radio signal prone to freezing and less reliable than analogue?
This is a myth! The digitial radio transmission standard is incredibly clever and actually delivers a reception performance that is vastly superior to FM. This means that for an equivalent signal, it is much more likely for digital radio to pick up and hold a signal than an FM radio. If you are in a marginal coverage area, you may experience burbling when listening to digital radio, however coverage is being increased to match FM so everyone will soon be able to take advantage of this quality.