I love having access to all my textbooks online, but not paying for them! It is so convenient when you don't have time or energy to go pick up books from your local library at school or home. Sometimes it takes me longer than expected (due to traffic) just getting through campus with this system set-up in place; however once that's done everything works great - no problems here!! As far as any cons goes there are none whatsoever using their website/systems. This textbook rental option saves money since we do NOT need physical copies of our texts anymore. We can use these rentals whenever needed instead of purchasing new ones every semester which would be costly if purchased individually each year.