Achievers is well suited in a team-based environment. In this type of environment, there is much visibility to the efforts of each team members. Rewarding such efforts in a visible manner encourages the entire team.
Achievers is not well-suited for any environment where Management "plays favorites" with specific employees. Although these "favorite" employees will enjoy the benefits of the Achievers acknowledgment and rewards, such favoritism will serve to discourage hardworking employees not in the "favorites" group.