Controls: The incremental, speed-control buttons are oriented as expected with the increase button on the top or right-hand side. They are positioned appropriately being right next to one another. The button size is considered fair making it somewhat difficult to operate while exercising. An alternative set of quick speed-controls provide the ability to select a few, whole-number speeds, using a limited set of control buttons. The incremental, incline-control buttons are oriented as expected with the increase button on the top or right-hand side. They are positioned appropriately, being adjacent to one another. The button size is considered fair making it somewhat difficult to operate while exercising. An alternative set of quick incline-controls provide the ability to select every-other, whole-number incline using a limited set of control buttons. Display: The monitor displays black characters on a green colored background. The size of the characters showing the "speed" is considered poor and the size of the characters showing "incline" is considered poor. All exercise statistics are presented in the same physical window. When glare is evident, the characters affected by the glare are washed out and illegible. Programs: This machine comes equipped with 4 built-in exercise programs. A list of programs is convenienty shown on the console. A graphical illustration of each program's exercise profile is shown on the console. Ergonomics: The step-up height to the running deck is 8.5 inches from the floor. This machine has a full front-handrail. A partial side-handrail provides both security and easy access. Exercise: The minimum incline for this machine is 1.8 percent. The maximum incline is 11.5 percent. The manufacturer-stated, top speed is 12 mph. A top speed of 11.87 mph was measured. Construction: This machine features a motor with a 2.5 hp rating. The 4 floor-levelers provide maximum leveling capability. Performance on our durability test - simulating a half-year of usage - was very good but wear was evident. Safety: The "stop" button size was considered fair. The magnetic style safety-key disengaged without issue when a user approached the end of the running belt, which stopped the motor and running belt as expected. After the safety key was removed from its receptacle, the running belt coasted to a stop from a speed of 6 mph, in 3.9 seconds. The average stopping time for all tested treadmills is 5.7 seconds. When walking within reach of the control console, the motor housing which resides at the front of the running belt, created some interference with a user's feet, but it was infrequent.

The Horizon Fitness Adventure 3 is part of the Treadmills test program at Consumer Reports. In our lab tests, Treadmills models like the Adventure 3 are rated on multiple criteria, such as those listed below.

Ergonomics: Ergonomics considers how well the machine accommodates the needs of users and includes belt size, foot-rail design and handgrip design.

Construction: Construction considers aspects that impact quality like the motor and related components, running deck and the results of our durability tests.

Ease of use: Ease of use considers the ease of using the controls, functions, programs and reading the display.