The University of Arizona's Eller College of Management conveniently offers six starts throughout the year for its Eller Online MBA for working professionals, and students praise the "flexibility" of choosing how many courses to take at a time. With six concentrations in entrepreneurship, health care, finance, management and organizations, management information systems, and marketing, students appreciate the "breadth of classes offered" and "the opportunity to touch upon a variety of subjects." Students choose the Eller Online MBA for its "affordability," "great reputation" and "convenient online experience." As one student reports, "University of Arizona's program was the right mix of cost, reputation, and course offering." Another adds that the program embraces its online student population "by communicating daily, providing 24/7 librarian services, and making its professors accessible." Courses are 100 percent online and delivered via the "user-friendly" Blackboard platform, which "enables in-class discussions, group discussions, private discussions with the professor and video lectures that do not skip or stall." As one student raves, "Accessibility was flawless . . . I travelled frequently while in the program