Pro Focus is more on having fun, and less on scoring
The victory point cards are part of your deck itself, so you won't really know exactly how many points you or your opponents have until the game ends and all the points are tallied up. This lets you focus on the game and have a great experience playing your cards, rather than doing math equations and constantly comparing your points to everyone around you. It allows the fun and thrill of the deck building aspect to take front and center.
Pro Starts very simple and grows in complexity over time
At the start of the game, each player is given 10 identical cards to begin their deck. Within these starter cards are some properties which are worth victory points (the player with the most of these at the end of the game wins) and some currency cards (used to buy new cards).
Your options will be pretty limited at first, however, as the game progresses you'll be spending your currency cards every turn to buy new cards and add to your deck. These new cards can include more property cards, action cards that let you earn additional currency, curses to slow down your opponents, and more.
As your deck slowly starts to become more expansive, the trick is juggling your limited currency and trying to buy cards that have synergy with the ones in your hand. Deciding whether to buy properties worth victory points or action cards that give you the opportunity to earn more currency leaves a ton of room open for strategy and deck management.
Con Player interaction is very limited
While you are in direct competition with your opponents to gather the most properties (victory points), you'll most likely be more concerned with managing your own deck rather than what your opponents are doing. There are a few attack cards that allow you to force opponents to discard or unable to draw new cards, but other than those rare exceptions, there is very little actual interaction.