The Reebok elliptical trainer is a large machine with mostly self contained parts. This makes it difficult for the owner to do repairs and maintenance himself. There is very little problem with the Reebok elliptical, except that after some regular use it does become very noisy. Most people seem to really enjoy the Reebok elliptical because it has such a smooth ride. The handlebars move with the pedals and help to give you an upper body workout. If you don't want to use them, and many people don't, you can leave them off when putting the Reebok elliptical together. If you elect to leave them on the machine and don't want to use them, there is another bar on top in the center that you can use to just hold on to for balance. Be careful because the handlebars will still swing back and forth. This machine has the wheel in the back like the trainers you might find in the gym, which accounts for the smoother ride. The pedals themselves do not have movement which also actually helps keep the ride smooth, and even when riding the Reebok Elliptical at high speeds the machine is very stable with no wobbly movement at all. The stride is at a very comfortable measurement so that you don't have extreme movements. The Reebok elliptical offers a very vigorous workout with low impact on your joints. People that own the Reebok elliptical highly recommend it and are generally pleased with their choice. The machine preferred is the Reebok elliptical trainer REL8, and comes with a limited warranty.