fact that it doesn't have a big physical impact like treadmills or steppers, which can really damage or put a strain on your bones. A lot of people experience extreme pain and have to deal with concerning health issues because of the wrong equipment they use but with the Gazelle Trainer you don't have this problem as it gives you natural movement. Also, if you wish for something to keep in your home and get a full body workout for minimum investment, this is definitely the equipment you need to purchase. If you concern yourself about storage, you should also know that it can be easily packed to fit a smaller space.