The game's heritage is in the extensive line of cardgames based on original Bohnanza. But, it is primarily a dice game with cards. I have played a few 'improved Yahtzee'-type games and Wurfel Bohnanza might be the best, or certainly in the top 2-3. While it DOES use cards as currency - a brilliant element from Bohnanza, it really has little in common with Bohnanza - other than some colored characters on the dice faces borrowed from Bohnanza's 'bean' characters.
Wurfel Bohnanza keeps every player involved regardless of who is the active player and encourages tactical thinking. Looking ahead at upcoming card requirements while allowing a 'fulfilled' card to be completed at any time keeps players engaged with plenty of choices. Portable, fun and affordable. Highly recommended!