I have a Giottoa Rocket V2 at home - it is a HX machine which is similar to what is used in a cafe. Before this achine, I've owned a Rancilio Silvia v3 and a Faema dual boiler. Each and every machine benefits from being maintained and cleaned.
After cleaning the inside of the machine, I will usually make an extraction and dump the coffee, just to season the bits that are in contact with the coffee and ensure I don't get any aftertaste. This step is likely not at all required, but old habits die hard.