"It looks like an espresso machine, but the engineering underneath is for coffee-colored steam."
The '20 Bar Professional Pump' uses excessive pressure, a common feature in budget machines to create foam from pre-ground coffee, not to extract a balanced espresso shot which requires only 9 bars.
This machine is for someone graduating from pods who wants the tactile ritual of making espresso-like drinks for a very low entry price. It's a countertop appliance for making hot, foamy milk coffees, not a tool for the espresso hobbyist.
Anyone with a decent burr grinder and a genuine interest in learning to make espresso should save up. The pressurized system and thermal instability of this machine create an extremely low performance ceiling you will hit on day one.