With the non-pressurized filter, you could adapt the pressure to get different tastes. However, if you want Crema you will have to grind fresh beans yourself before use. Note that the beans have to be roasted less than 4 weeks before use. When using the pressurized filter, you would have to put less strength for the pressurization. It makes it easier to extract the espresso but it will only give a certain flavor and you will not be able to adapt the coffee to your taste. In addition, if you extract too fast or if you use the stand, the Crema could be bubbly. On the other hand, if you used the kind of extraction in the past, you could enjoy the extraction with the non-pressurized filter.