Nowadays cleanliness is not a matter of expectation, but a standard. Customers are getting more and more critical and attention to details is what elevates customer experience. Cloudy glassware is definitely something that will not be appreciated by customers. In hard water areas this may be difficult to prevent, as hard water deposits create a film build-up, leading to cloudy glasses.
In that case, make sure that you top up the machine with dishwasher salt, such as the Sun Professional Dishwasher Salt. The professional formula improves and softens the water flow, to prevent hard water deposits from building up. Your glasses will come out sparkling clean without cloudy films!