"An appliance that approximates espresso for a very low price, but overstates its capability."
The '20 Bar Professional Extraction System' is a headline number from a vibratory pump under no-flow conditions; the functional pressure during extraction will be lower, and the goal is a stable 9 bars, which is difficult for inexpensive machines to maintain.
This is for someone who wants to make espresso-like drinks and lattes at home for the lowest possible cost of entry. If you view it as a coffee appliance, not a hobbyist tool, and prioritize budget above all else, its price is its main feature.
Anyone serious about learning to make genuine espresso should avoid this. The presumed use of a pressurized basket and lack of stable temperature control will be frustrating and prevent learning proper puck preparation and extraction.