I'm only slightly biased in any comment I might give about this game, considering that I had the privilege of seeing - if not playing - this game in various stages of its development. (I didn't blindly rate everything 6/6 -- see? Only SLIGHTLY biased!) This rating is based off of the final product (as seen at Pintastic 2021).
Poker is a simple concept brought to life in an elegant manner. Rather than evoking the idea of playing a game of poker, as is the case for nearly every other poker-themed pinball machine, Poker's rules are based off of actually playing a seven-card game of poker.
From a starting cache of $5000, you place your bet. From there, the fate of your hand is in...your hands. Hit drop targets to complete your hand, hoping that with a little luck, a little skill, and maybe a hit of the Cheat button (which lets you "cheat" an outlane drain with a physical ball-popper of a saver, as well), you win your hand. These games of poker are ones you can lose, and, unlike a game like Bally Black Jack, the dealer winning isn't just fewer points for you...it's a full-on detraction. You'll lose from your money cache, and how much money you have at the end of the game can make a big difference. Negative scores are a feature in Poker.
The game is very skill-heavy. The mystery is a flipper shot at the uppermost flipper, where you can choose your reward (at least one of which is usually a "reward" of losing points). There are ball saves on both sides, both of which are physical - the ball-popper on the right, and a lower flipper on the left, which can either be used to immediately shoot back up through the main flippers or to aim for a nearby target bank. There are multiple places to call your shot for skill shots, and, of course, the main poker mechanism is aiming for the most advantageous drop targets to finish your hand.
Encouraging slow, intentional shots can be a bit contrary to how quickly and smoothly it plays. What a problem to have! It can be frustrating to reconcile the two play styles, but it means that someone flipping around with no regards for the rules can still have fun. (I have to say, though, that trying to slow down and play poker is incredibly fun.)
One would be remiss to not mention the callouts, which were painstakingly done by Ron Hallett of the Slam Tilt Podcast.
Poker.
It's good.