The game is so well made that it's easy to ignore other responsibilities, even though you're playing with 'fake' money. And since gambling addiction is a real issue, that's something to beware of. If you or your child has even the hint of an addictive personality, though, this game will engage it. Additionally, the games are friendly ones, with players congratulating each other when they win (or saying nothing) and without bullying or abusive behavior, which is a credit to the developer in a game this popular. So, with a little luck and smart wagering, you probably won't have to buy additional chips. The stakes aren't quite as high, as the game is generous with its in-game cash up front and via its rewards program.
Zynga Poker is a wonderful simulation of the game, in that you'll feel the rush of victory when the cards fall your way, but you'll grumble audibly when they don't. Poker is a love it or hate it game - often both, and this app perfectly encapsulates that feeling at the tables.