Lifespan's entry level model for those who already have a desk and they just need a treadmill designed for it. NOT for heavy use!
With the warranty limiting it to 3 hours of use per day, it is clearly limited. Our guess is that Lifespan is trying to bring people into the whole "exercise while you work" ecosystem so apparently the thought pattern was, "let's develop a unit at a price that people have a hard time saying no to." This is only a supposition but if you know you are going to use it, you would serve yourself much better by putting $200 with it and getting the TR1200 DT3 model.