Maxi climber reviews: In the past few decades, maxi organizers have gained increasing popularity among exercise enthusiasts. For the uninitiated, a maxi climber (or vertical climber) is a bit of exercise equipment supposed to imitate the motions the body experiences when rock climbing. Unlike conventional pieces of exercise equipment such as treadmills, exercise bikes, and elliptical machines, maxi climbers are intended to enable an individual to burn the maximal number of calories in the briefest period of time period.