Interface is well designed and easy to learn. Game isnt too overly "pay- to-play" like other so called free games; it doesnt ping you constantly with $ buy-in ads. You do have to pay to play against real live humans. Otherwise you are stuck combatting the computer, but the computer has a fairly competitive algorithm and you wont always win. Overall probably a 4 out of 5, but I downgrade for the no-humans-without-money thing!
ZepHedEd about Gin Rummy *, v2.5.1